半導体レーザー(LD)スターターセット
- Bundles Include LD Controller, TEC Controller, LD Mount, Collimation Optic, and Accessories
- Ideal for Stable and Safe Operation of Standard Laser Diodes
Included Accessories
LTC56B
Ø5.6 mm LD Controller Kit
(Controller Cables Included)
SM1NT
C230TMD-B
(Coating Varies
with Item #)
BA2
S1TM09
SPW301
SPW909
WS02
2x
TR1.5
2x
PH1.5
Please Wait
Key Specifications | |
---|---|
Specification | Value |
LDC205C Laser Diode Current Controllera | |
LD Current Control Range | 0 to ±500 mA |
Compliance Voltage | >10 V |
Photocurrent Control Range | 25 µA to 10 mA |
Small Signal 3 dB Bandwidth | DC to 150 kHz |
TED200C Temperature Controllera | |
TEC Current Control Range | -2 A to +2 A |
Compliance Voltage | >6 V |
Maximum Output Power | 12 W |
Thermistor Control Range | 10 Ω to 20 kΩ / 100 Ω to 200 kΩ (2 Ranges) |
Supported IC Sensors | AD590, AD592, LM135, LM335 |
LDM56(/M) Laser Diode Mount with Integrated TECb | |
Supported Laser Diode Package/ Pin Configurations | Ø5.6 mm TO Can, A, B, C, D, E, G, and H |
Laser Current (Max) | 2 A |
TEC Current | 5 A |
TEC Heating/Cooling Capacity | 8 W (@ 25 ºC) |
RF Modulation Frequency | 100 kHz to 600 MHz |
付属アイテム:
- ベンチトップ型LD電流コントローラ:LDC205C
- ベンチトップ型温度コントローラ:TED200C
- Ø5.6 mm TO-Can型半導体レーザ用TEC付きマウント:LDM56/M*
- ARコーティング付きコリメート用レンズ
- 接続用ケーブルならびに関連アクセサリ(詳細については「キット内容」タブをご覧ください)
作動距離を伸ばしたいときには、当社の30 mmケージシステム部品を前面に取り付けることができます。
LTC56シリーズキットは、半導体レーザ(LD)用電流コントローラと温度コントローラのセットで、LD用マウント、コリメート用レンズ、アクセサリ類が含まれています。具体的にはLD電流コントローラLDC205C、温度コントローラTED200C、半導体レーザーマウントLDM56/M*のほか、標準的なØ5.6 mm半導体レーザを安全かつ安定に動作させるうえで必要なアイテムが含まれています。こちらのスターターセットでお買い求めいただくと、単品でご購入いただくよりもお得になっています。
*注)LDマウントLDM56/Mは、ピグテール付きTO-Can型半導体レーザに対して温度制御が十分に機能しない可能性があり、また個体によっては装着ができない場合がございますのでご注意ください。ピグテール付き半導体レーザには、専用に設計されたTEC付きLDマウントLDM9LPのご利用をお勧めしております。
キットはコリメート用レンズの反射防止コーティングの波長範囲によって、350~700 nm用のLTC56A/M、600~1050 nm用のLTC56B/M、1050~1700 nm用のLTC56C/Mの3種類のタイプからお選びいただけます。部品の詳細については、「キット内容」タブをご覧ください。各ユニットには2本のケーブルが付属しており、1本は温度コントローラ用(CAB420-15)、もう1本は半導体レーザーコントローラ用(CAB400)です。基本的に必要なケーブルはコントローラや上述のスターターセットに付属していますが、追加でお買い求めいただくことも可能です。
コリメートレンズは変更が可能です。ただし調整範囲は限られており、レンズの焦点距離によってはコリメートができない場合がございます。ご購入前に当社へご確認いただくことをお勧めしております。
フレクシャーアダプタLDMXY(別売り、下記参照)を半導体レーザーマウントに取り付けると、コリメート用非球面レンズの精密な位置決めが可能です。2つの部品で構成されているため、半導体レーザやコリメート用レンズを動かさずに、取り付けられた30 mmまたは60 mmケージシステムの位置の粗調整ができます。532 nmのDPSSレーザ用取付けフランジLDM56DJも下記にて別途お求めいただけます。
取付け用部品としてミリ規格またはインチ規格の部品を付属したセットがございます。コントローラLDC205CおよびTED200Cは、100、115、230 VACの電圧で動作します。
Laser Diode Accessory Selection Guide | |||||
---|---|---|---|---|---|
Other Temperature Controlled Mounts | Passive Mounts | Passive Mounts with Collimation Package | Strain Relief Cables | Diode Sockets | Other Controllers |
Item # | LDC205C |
---|---|
Current Control (Constant Current Mode) | |
Control Range | 0 to ±500 mA |
Compliance Voltage | >10 V |
Resolution | 10 µA |
Accuracy | ±0.5 mA |
Noise Without Ripple (10 Hz to 10 MHz, rms, typ.) | < 3 µA |
Ripple (50/60 Hz, rms, typ.) | < 2 µA |
Transients (Typ.) | < 0.5 mA |
Drift, 24 hours (typ., 0-10Hz, at constant ambient temperature) | <10 µA |
Temperature Coefficient | <50 ppm/ °C |
Current Limit | |
Setting Range | 0 to >500 mA |
Resolution | 10 µA |
Accuracy | ±1.5 mA |
Power Control (Constant Power Mode) | |
Photocurrent Control Range | 25 µA to 10 mA |
Photocurrent Resolution | 1 µA |
Photocurrent Accuracy | ±10 µA |
Analog Modulation Input | |
Input Resistance | 10 kΩ |
Small Signal 3 dB Bandwidth, CC Mode | DC to 150 kHz |
Modulation Coefficient, CC Mode | 50 mA/V ±5% |
Modulation Coefficient, CP Mode | 1 mA/V ±5% |
Laser Current Monitor Output | |
Load Resistance | >10 kΩ |
Transmission Coefficient | 20 V/A ±5% |
General Data | |
Safety Features | Interlock, Laser Current Limit, Soft Start, Short Circuit when Laser Off, Open Circuit Detection, Over Temperature Protection |
Display | LED, 5 Digits |
Connector for Laser, Photodiode, Interlock & Laser On Signal | 9-pin D-Sub Jack |
Connectors for Control Input / Output | BNC |
Chassis Ground Connector | 4 mm Banana Jack |
Line Voltage / Frequency | 100 V, 115 V, 230 V +15% –10% each / 50 to 60 Hz |
Maximum Power Consumption | 30 VA |
Mains Supply Overvoltage | Category II (Cat II) |
Operating Temperature | 0 to +40 °C |
Storage Temperature | -40 to +70 °C |
Relative Humidity | Max. 80% Up to 30 °C, Decreasing to 50% at 40 °C |
Pollution Degree (Indoor Use Only) | 2 |
Operation Altitude | <2000 m |
Warm-up Time for Rated Accuracy | 10 min |
Weight | <3.1 kg |
Dimensions (W X H X D) without Operating Elements | 146 mm x 66 mm x 290 mm |
Dimensions (W X H X D) with Operating Elements | 146 mm x 77 mm x 320 mm |
Item # | TED200C |
---|---|
TEC Current Output | |
Control Range | -2 A to +2 A |
Compliance Voltage | >6 V |
Maximum Output Power | 12 W |
Measurement Resolution | 1 mA |
Measurement Accuracy | ±10 mA |
Noise and Ripple (typ.) | <1 mA |
TEC Current Limit | |
Setting Range | 0 to >2 A |
Resolution | 1 mA |
Setting Accuracy | ±20 mA |
Thermistor Sensorsa | |
Control Range | 10 Ω to 20 kΩ / 100 Ω to 200 kΩ (2 Ranges) |
Resolution (20kΩ / 200 kΩ Range) | 1 Ω / 10 Ω |
Accuracy (20 kΩ / 200 kΩ Range) | ±10 Ω / ±100 Ω |
Temperature Stability, 24 hoursb (20 kΩ / 200 kΩ Range) | <0.5 Ω / <5 Ω |
IC Sensors | |
Supported Sensors | AD590, AD592, LM135, LM335 |
Control Range with AD590, LM135 | -45 °C to +145 °C |
Control Range with AD592 | -25 °C to +105 °C |
Control Range with LM335 | -40 °C to +100 °C |
Resolution | 0.01 °C |
Accuracy | ±0.1 °C |
Temperature Stability, 24 Hours | <0.002 °C |
Temperature Control Input | |
Input Resistance | 10 kΩ |
Control Voltage | -10V to +10V |
Transmission Coefficient Thermistor (20 kΩ / 200 kΩ Range) | 2 kΩ/V / 20 kΩ/V ±5% |
Transmission Coefficient IC-Sensors | 20 °C/V ±5% |
Temperature Control Output | |
Load Resistance | >10 kΩ |
Transmission Coefficient Thermistor (20 kΩ / 200 kΩ Range) | 500 mV/kΩ / 50 mV/kΩ ±5% |
Transmission Coefficient IC-Sensors | 50 mV/ °C ±5% |
General Data | |
Safety Features | TEC Current Limit, Short Circuit when TEC Off, Missing Sensor Protection, Open Circuit Detection, Over Temperature Protection |
Display | LED, 5 Digits |
Connector for Sensor, TE Cooler, TEC On Signal | 15-pin D-sub Jack |
Connectors for Control Input / Output | BNC |
Chassis Ground Connector | 4mm Banana Jack |
Line Voltage / Frequency | 100 V, 115 V, 230 V +15% -10% each / 50 to 60Hz |
Maximum Power Consumption | 60 VA |
Mains Supply Overvoltage | Category II (Cat II) |
Operating Temperature | 0 to +40 °C |
Storage Temperature | -40 to +70 °C |
Relative Humidity | Max. 80% Up to 30 °C, Decreasing to 50% at 40 °C |
Pollution Degree (Indoor Use Only) | 2 |
Operation Altitude | <2000 m |
Warm-up Time for Rated Accuracy | 10 min |
Weight | <3.1 kg |
Dimensions (W x H x D) without Operating Elements | 146 mm x 66 mm x 290 mm |
Dimensions (W x H x D) with Operating Elements | 146 mm x 77 mm x 320 mm |
全ての技術データは、23 ± 5°Cで相対湿度45 ±15%の条件下で有効
Item # | LDM56(/M) | |
---|---|---|
Laser Diode | ||
Supported Laser Diode Package | Ø5.6 mm | |
Supported Pin Configuration(s) | A, B, C, D, E, Ga, and H (Switch Selectable) | |
Accepted Pin Lead Diameter | 0.015" - 0.020" (0.38 mm - 0.51 mm) | |
Accepted Pin Lead Length | Up to 0.6" (15.24 mm) | |
Laser Current (Max) | 2 A | |
RF Modulation Frequency (Bias-T) | 100 kHz to 600 MHz | |
RF Input Impedance | 50 Ω | |
RF Max Power | 200 mW | |
Temperature Controller | ||
TEC Current (Max)b | 5 Ac | |
TEC Voltage (Max) | 4 V | |
TEC Heating/Cooling Capacity | 8 W (25 ºC) | |
Typical Temperature Range (LD Dependent) | 0 to 70 °C | |
Temperature Sensor | Thermistor | 10 kΩ ± 3% @ 25 °C, NTC, β = 3977 K ± 0.75% |
Thermocouple | AD592AN (1 μA/°K) | |
General Specifications | ||
Laser Interface | DB9 Female | |
TEC Interface | DB9 Male | |
RF Modulation Connector | SMA | |
Interlock Connector | 2.5 mm Phono Jack | |
Indicator | Green LED - LD Enabled | |
Mounting Holes | Imperial Mounts | 1/4"-20 (9 Places) |
Metric Mounts | M6 x 1.0 (9 Places) | |
Cage Compatibility | 4-40 Taps (8 Places) for 30 mm and 60 mm Cage Systems | |
Operating Temperature | 10 to 40 °C | |
Storage Temperature | 10 to 80 °C | |
Dimensions (L x W x D) | 4.00" x 4.00" x 2.07" (101.6 mm × 101.6 mm × 52.6 mm) | |
Weight | 1.9 lbs (0.87 kg) |
Click to Enlarge
LDM56(/M)の取付け機能の図
LDC205C前面パネル
Callout | Connection | Callout | Connection |
---|---|---|---|
1 | 5-Digit LED Display | 9 | Display Indicators |
2 | Display Units | 10 | Up/Down Display Select |
3 | Interlock Indicators | 11 | Diode Polarization Indicator |
4 | Laser Status Indicator | ||
5 | Laser Current On/Off Switch | 12 | Output Mode Indicator |
6 | Display Adjustment Knob | 13 | Diode Polarization Select |
7 | Supply Power Switch | 14 | Output Mode Select |
8 | Current Limit and Power Calibration Pots | 15 | Photodiode Current Range Pot |
LDC205C背面パネル
Callout | Connection | Callout | Connection |
---|---|---|---|
1 | TTL Input "LD REM" 0 to 5 V | 6 | Connector "LD OUT" for LD, PD, Interlock, & Status LED |
2 | Modulation Input / Analog Control Input "MOD IN", -10 to +10 V | 7 | Serial Number of the Unit |
3 | Analog Control Output "CTL OUT", -10 to +10 V | 8 | Indicator / Switch for Line Voltage (Included in Fuse Holder) |
4 | Cooling Fan | ||
5 | 4 mm Banana Jack for Chassis Ground | 9 | Power Connector and Fuse Holder |
TED200C前面パネル
Callout | Connection | Callout | Connection |
---|---|---|---|
1 | 5-Digit LED Display | 8 | Display Indicators |
2 | Display Units | 9 | Up/Down Display Select |
3 | Interlock Indicators | 10 | Selected Sensor Inticators |
4 | TEC Status Indicator | 11 | Sensor Select Key |
5 | TEC Current On/Off Switch | 12 | Potentiometers for PID Gain Settings |
6 | Supply Power Switch | ||
7 | Potentiometer for Current Limit Setting | 13 | Display Adjustment Knob |
TED200C背面パネル
Callout | Connection | Callout | Connection |
---|---|---|---|
1 | Analog Temperature Control Input "Tune In", -10 to 10 V | 5 | 15-pin D-sub Jack for the TEC Element and the Temperature Sensor "TE OUTPUT" |
2 | Analog Temperature Control Output "CTL Out", -10 to 10 V | 6 | Serial Number of the Unit |
3 | Cooling Fan | 7 | Indicator / Switch for Line Voltage (Included in Fuse Holder) |
4 | 4 mm Banana Jack for Chassis Ground | 8 | Power Connector and Fuse Holder |
ベンチトップ型LD電流コントローラLDC205C
Pin | Connection | Pin | Connection |
---|---|---|---|
1 | Interlock and Status LASER ON/OFF | 6 | Not Connected |
2 | Photodiode Cathode | 7 | Laser Diode Cathode (with Polarity Anode Grounded - AG) |
3 | Laser Diode Ground | 8 | Laser Diode Anode (with Polarity Cathode Grounded - CG) |
4 | Photodiode Anode | ||
5 | Ground for Pin 1 | 9 | Not Connected |
半導体レーザーコネクタ
半導体レーザーリモート
TTL入力(0~+5 V)
変調入力
アナログ制御入力
(-10 V~10V)
制御出力
アナログ制御出力
(0~±10 V)
筐体接地
ベンチトップ型温度コントローラTED200C
Pin | Connection | Pin | Connection |
---|---|---|---|
1 | Status LED (+) TEC ON/OFF | 9 | Not Connected |
2 | Not Connected | 10 | Transducer AD 590/592 (-), LM 135/335 (+) |
3 | Thermistor (-), Ground | 11 | Transducer AD 590/592 (+), LM 135/335 (+) |
4 | Thermistor (+) | ||
5 | TEC (+) | 12 | Not Connected |
6 | TEC (+) | 13 | TEC (-), Status-LED (-) |
7 | TEC (+) | 14 | TEC (-), Status-LED (-) |
8 | AGND LM 135/335 (-) | 15 | TEC (-), Status-LED (-) |
温度センサとコントローラ
アナログ温度制御入力
アナログ温度制御出力
半導体レーザーマウントLDM56(/M)
LDコントローラ:D型メス
Pin | Signal | Description |
---|---|---|
1 | Interlock and Status Pin (LDC Specific) | Laser Diode (LD) Status Indicator and Interlock Circuits input. |
2 | Photodiode Cathode | This pin is connected to the 9 o'clock pin on the laser socket when the photodiode (PD) polarity switch is set to anode ground (AG). It is attached to ground and the 12 o'clock and 6 o'clock pins on the laser socket when the PD polarity switch is set to cathode ground (CG). |
3 | Laser Ground (Case) | This pin is connected to the 12 o'clock and 6 o'clock pins on the laser socket and corresponds to the settings of the LD and PD polarity switches (i.e. If the LD and PD switches are set to AG then this pin grounds the anodes of the laser and photodiodes). |
4 | Photodiode Anode | This pin is connected to the 9 o'clock pin on the laser socket when the PD polarity switch is set to CG. It is attached to ground and the 12 o'clock and 6 o'clock pins on the laser socket when the PD polarity switch is set to AG. |
5 | Interlock and Status Return | Status and interlock circuitry return. |
6 | Laser Diode Voltage (Cathode) | This pin is connected to LD interface pin 7, through a 499 Ω resistor, when the LD polarity switch is set to AG. It is attached directly to LD interface pin 3 when the LD polarity switch is set to CG. |
7 | Laser Diode Cathode | This pin is connected to the 3 o'clock pin on the laser socket when the LD polarity switch is set to AG, and it floats otherwise. |
8 | Laser Diode Anode | This pin is connected to the 3 o'clock pin on the laser socket when the LD polarity switch is set to CG, and it floats otherwise. |
9 | Laser Diode Voltage (Anode) | This pin is connected to LD interface pin 8, through a 499 Ω resistor, when the LD polarity switch is set to CG. It is attached directly to LD interface pin 3 when the LD polarity switch is set to AG. |
TECコントローラ:D型オス
Pin | Signal | Description |
---|---|---|
1 | TEC Lockout (+) | This pin is connected to the anode of the photo-relay side of the TEC Lockout circuit. When using Thorlabs TEDs no external circuitry is required. To use these features with third-party controllers please refer to the Status and Interlock section of the mount's manual. |
2 | +Thermistor | The 10 kΩ at 25 °C NTC thermistor (provided for temperature feedback). |
3 | -Thermistor | The thermistor return pin. |
4 | +TEC | This pin is connected to the positive terminal of the TEC element. |
5 | -TEC and TEC Lockout (-) | This pin is connected to the negative terminal of the TEC element, and also is common to the cathode of the photo-relay of the TEC Lockout circuit - refer to the Status and Interlock section of the mount's manual. |
6 | N.C. | Not Used. |
7 | AD592(-) | The negative terminal of the AD592 temperature transducer. When using Thorlabs TEDs no external circuitry is required. To use this device with third party controllers it must be properly biased. Refer to Analog Devices AD592 Data for application information. |
8 | N.C. | Not Used. |
9 | AD592(+) | The positive terminal of the AD592 |
オプションのリモートインターロック
2.5 mmメス型モノラルフォノジャック
Specification | Value |
---|---|
Type of Mating Connector | 2.5 mm Mono Phono Jack |
Open Circuit Voltage | +5 VDC with Respect to System Ground (When Used in Conjunction with Thorlabs Drivers) |
Short Circuit Current | 10 mA DC (Typ.) |
Connector Polarity | Tip: Positive; Barrel: Ground |
Interlock Switch Requirements | Must be N.O. dry contacts. Under no circumstances should any external voltages be applied to the Interlock input. |
RFレーザ変調入力
SMAメス型
最大600 MHzまでのRF変調用外部入力端子。これはバイアスTを通じてレーザに直接AC結合する50 Ω入力です。
Photo (Click to Enlarge) | Quantity | Item # in Imperial Kits | Item # in Metric Kits | Description |
---|---|---|---|---|
1 | LDC205C | Benchtop LD Current Controller, ±500 mA HV | ||
1 | TED200C | Benchtop Temperature Controller, ±2 A / 12 W | ||
1 | LDM56 | LDM56/M | TE-Cooled Mount for Ø5.6 mm Laser Diodes, 1/4"-20 (M6) Taps | |
1 | LTC56A(/M) Kit: C230TMD-A | Mounted Aspheric Lens, AR: 350 - 700 nm, f = 4.51 mm, NA = 0.55 | ||
LTC56B(/M) Kit: C230TMD-B | Mounted Aspheric Lens, AR: 650 - 1050 nm, f = 4.51 mm, NA = 0.55 | |||
LTC56C(/M) Kit: C230TMD-C | Mounted Aspheric Lens, AR: 1050 - 1700 nm, f = 4.51 mm, NA = 0.55 | |||
1 | S1TM09 | SM1 to M9 x 0.5 Lens Cell Adapter | ||
1 | SM1NT | SM1 (1.035"-40) Locking Ring | ||
2 | TR1.5 | TR40/M | Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 1.5" (Ø12.7 mm Optical Post, SS, M4 Setscrew, M6 Tap, L = 40 mm) | |
2 | PH1.5 | PH40/M | Ø1/2" Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L = 1.5" (Ø12.7 mm Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L = 40 mm) | |
1 | BA2 | BA2/M | Mounting Base, 2" x 3" x 3/8" (50 mm x 75 mm x 10 mm) | |
1 | SPW909 | Spanner Wrench for SM1-Threaded Adapters, Length = 1" | ||
1 | SPW301 | Spanner Wrench for an M9 x 0.5 Optics Housing, Length = 1" | ||
1 | WS02 | Fabric Grounding Wrist Strap, Adjustable Circumference, 6 ft Coiled Cord | ||
2 Pieces | SS25E63Da | SS6M16Da | 1/4"-20 Stainless Steel Setscrew with Hex on Both Ends, 5/8" Long (M6 x 1.0 Stainless Steel Setscrew with Hex on Both Ends, 16 mm Long) |
PIDの基礎
PID回路は制御ループフィードバックコントローラとしてよく用いられており、さまざまなサーボ回路として広く使われています。 PIDとは、それぞれ比例(Proportional)、積分(Integral)、微分(Derivative)の頭文字で、PID回路の3つの制御設定を表しています。 サーボ回路の役割は、システムを長時間所定値(目標値)に保持することです。 PID回路は、出力を目標値に保持するため、主に目標値と出力値の差をエラー信号として発生させることにより、システムをアクティブ制御しています。 3つの制御は、時間依存型エラー信号に関連しています; 端的に言うと、次のように考えることができます。 比例は出力値のエラー、積分は過去の累積エラー、微分はエラーの予測によっています。 各制御の結果は、その後回路の電流を調整する加重和にフィードされます(u(t))。 この出力は制御デバイスへ送られ、その値は回路へとフィードバックされ、回路の出力を目標値に到達させ保持するようアクティブ安定化の処理が行われます。 以下のブロック図は、PID回路の動作を簡略化したものです。 システム要求や要件によって、サーボ回路に1つもしくは複数の制御を使用することができます(例: P、I、PI、PD、PID)。
PID回路の適正な制御設定によって、最小限のオーバーシュート(目標値超過)とリンギング(目標値振動)で、素早い応答速度を実現できます。 ここで半導体レーザの温度安定化に用いられる温度サーボを例にとってみましょう。 PID回路は、最終的には熱電冷却素子(TEC)への電流を自動制御します(多くの場合FET回路上のゲート電圧の制御を通して行われます)。 この例では、電流は操作変数(MV)とします。 サーミスタは半導体レーザの温度モニタとして用いられ、サーミスタにかかる電圧を処理変数(PV)とします。 目標値(SP)の電圧は指定の温度に対応して設定します。 エラー信号e(t)は、SPとPVの差分を表します。 PIDコントローラはエラー信号を発生し、目標値に到達するようMVを変更させます。 例えばもし、e(t)の状態が半導体レーザの過熱を示せば、回路はTECを通してさらに電流を流すよう促します(比例制御)。 比例制御はe(t)に比例するので、半導体レーザを十分な速度で冷却できないかもしれません。 その場合、累積エラーから判断し、目標値へ到達させようと出力を調整し、回路はTECを介してさらに電流量を増加させます(積分制御)。 SPに到達すると(e(t)が0に近づくと)、回路はSPに達するのを見越してTECを通して電流を減少させます(微分制御)。
PID回路は適切な制御を保証するものではないことにご注意ください。 不適切なPID制御の設定は、回路を著しく振動させたり、制御の不安定を引き起こす可能性があります。 正しい動作は、PIDの適正な調整によって得られます。
PID理論
PID制御回路u(t)の出力を得る方程式は以下となります。
Kp= 比例利得
Ki = 積分利得
Kd =微分利得
e(t)=SP-PV(t)
ここから制御ユニットは数学的定義によって定義づけることができ、個々の制御についてもう少し詳しく考察することができます。 比例制御は、エラー信号に比例します。これは、回路が発生させたエラー信号に対する直接的な応答です。
より大きな比例利得は、より大きな変化をエラーへの応答にもたらし、コントローラがシステムの変化に応答できる速度に影響を与えます。 比例利得の値が高いと回路の応答を素早く行えますが、あまりに高い場合は、SP値に対して振動を引き起こしてしまいます。 値が低すぎる場合は、回路はシステム変更への応答性が悪くなります。
積分制御は、比例利得よりさらに1段階ステップが進み、エラー信号の大きさだけでなく、エラーの期間にも比例しています。
積分制御は、比例制御のみによる定常誤差を除去するとともに、回路の応答速度向上に非常に高い効果をもたらします。 積分制御は、未修正の過去のエラーを合計し、エラーにKiを乗算することで、積分応答を出します。 従ってわずかな継続エラーに対しても、大規模な集積積分応答を実現することが可能です。 しかしながら、積分制御の高速応答に起因して、高い利得値による目標値の著しい超過が生じ、振動と不安定性を引き起こします。 低すぎる場合、回路のシステム変更への応答速度が著しく低下します。
微分制御は、比例制御および積分制御から予測される目標値超過とリンギングを低減させます。 回路が時間の経過とともにどう変化しているか(エラー信号の微分から判断)素早く決定し、Kdを乗算することで微分応答を出します。
比例や積分制御と異なり、微分制御は回路の応答を減速させます。 そのため、積分制御や比例制御によって引き起こされた振動を抑制したり、超過を部分的に補うことができます。 高い利得値は回路の応答性にかなりの減速を生じさせ、ノイズや高周波振動が発生しやすくなります(回路が迅速に応答するには低速すぎるため)。 低すぎると、回路はSP値を超過する傾向にあります。しかしながら、SP値を著しく超過するケースは避けなければならず、そのためより高い微分利得(より低い比例利得とともに)が用いられます。 下記の図は、個々のパラメータの利得の増加による影響を示しています。
Parameter Increased | Rise Time | Overshoot | Settling Time | Steady-State Error | Stability |
---|---|---|---|---|---|
Kp | Decrease | Increase | Small Change | Decrease | Degrade |
Ki | Decrease | Increase | Increase | Decrease Significantly | Degrade |
Kd | Minor Decrease | Minor Decrease | Minor Decrease | No Effect | Improve (for small Kd) |
チューニング
通常、適切なサーボ制御を得るために、P、I、Dの利得値は個々で調整する必要があります。 どのシステムに対してもどの値にするべき、といった決まった一連のルールがあるわけではありませんが、基本手順に沿ったチューニングは各々のシステムや環境に合わせるのに役立ちます。 概して、PID回路はSP値の超過をわずかに起こし、その後SP値に到達させるため素早く減衰するようにします。
手動による利得設定のチューニングは、PID制御設定において最もシンプルな方法です。 しかしながらこの手順はアクティブで行われ(PIDコントローラがオンとなり、システムに正しく接続されている)、完全に設定するには多少の経験を要します。 PIDコントローラを手動で調整するには、まず始めに積分および微分利得を0に設定します。 出力に振動が現れるまで、比例利得を上げてください。 比例利得はこの値の約半分の値に設定します。 比例ゲイン利得設定後は、任意のオフセットがシステムに合わせた適切なタイムスケールに修正されるまで積分利得を上げてください。 上げすぎた場合は、SP値の著しい超過と回路の不安定性が引き起こされます。 積分利得が設定されたら、次に微分利得を上げてください。 微分利得はオーバーシュートを軽減し、システムを迅速にSP値へ収束させます。 微分利得を上げすぎると、大幅な超過が生じます(回路の応答が低速すぎるため)。利得設定を試行することにより、システムが変化へ素早く応答し、SP値の振動を効率よく減衰させるといった、PID回路の性能を最大限にすることができます。
Control Type | Kp | Ki | Kd |
---|---|---|---|
P | 0.50 Ku | - | - |
PI | 0.45 Ku | 1.2 Kp/Pu | - |
PID | 0.60 Ku | 2 Kp/Pu | KpPu/8 |
手動によるチューニングは非常に効果的なPID回路の設定方法ですが、ある程度の経験とPID回路および応答についての理解を必要とします。 PIDチューニングのためのZiegler-Nicholsメソッドは、もう少し体系的な手引きとなっています。 再び、積分利得と微分利得をゼロ値にセットしてください。 比例利得を回路が振動するまで上げます。 この利得をレベルKuと呼びます。 振動はPuの期間です。 個々の制御回路の各利得は右の表に示しています。
Posted Comments: | |
George Brown
 (posted 2024-04-02 14:17:23.26) I have a question about mating the S1TM09 lens cell adapter to the LDM56 Mount:
1, The depth of the cold plate of the LDM56 relative to the surface is 0.24 in.
2. The thickness of the flange securing the laser diode to the cold plate is 0.13 in.
3. This leaves 0.11 in. depth of SM1 threads.
4. The S1TM09 lens cell adapter, on the other hand, is 0.275 in. thick.
5. As a consequence, the S1TM09 adapter has only 0.11 in of threads available.
Could it be that the LD mounting flange is not intended to be used in conjunction with the S1TM09 lens cell adapter? Fedele Tagarelli
 (posted 2022-11-24 13:14:01.097) The cables supplied with controllers for TEC and LD are very poor quality. The screws used to secure the DSUB connector to the LDM56 and the controlles wear out after first usage. I had to change the DSUB connectors of the supplied cables because they were not usable anymore. hchow
 (posted 2022-11-24 09:49:18.0) Dear Mr. Tagarelli, thank you for your feedback. I am sorry to hear that the cables provided with this laser diode starter set are defective and did not meet your expectations. I sincerely apologize for any inconvenience you may have experienced due to this problem. Rest assured this issue will be taken care of. I will reach out to you personally to discuss possible solutions. Thank you. Mateusz Mrozowski
 (posted 2020-08-25 08:01:13.84) Hello,
I was wondering if it would be possible to get LDM90 mount instead of LTC56B.
We are getting LD785-SEV300 diode and it requires bigger mount than one in the kit.
Kind regards,
Mateusz YLohia
 (posted 2020-08-25 10:39:59.0) Hello Mateusz, thank you for contacting Thorlabs. Unfortunately, we currently do not offer the LTC56B kit with the LDM90 mount. You would have to add the components listed on the "Kit Contents" tab individually to your cart and swap out the LDM56 for the LDM90. That being said, we have noted your request and will look into adding such a kit to our catalog in the future. Nicolas Spegazzini
 (posted 2020-07-07 23:58:53.487) Hello,
I'm name is Nicolas Spegazzini, professor and researcher in spectroscopy. At this moment I am in Argentina. I wonder if there is any possibility of being able to buy this laser kit (LTC56A / M) plus 532nm DPSS Lasers (DJ532-40).
Undergraduate Program Director
Professor, Departments of Chemistry and Pharmacy
School of Science
University of Belgrano
Villanueva 1324
C1426DQG Buenos Aires, Argentina YLohia
 (posted 2020-07-08 10:22:42.0) Hello Nicolas, thank you for contacting Thorlabs. We can certainly quote you for these items. Our Sales Team will reach out to you directly. Jeonghun Lee
 (posted 2020-03-19 09:39:31.19) Hi, do you think it is viable to make an external cavity diode laser (Littrow configuration) by using this in conjunction with a grating (which will be mounted on a separate nearby optical mount)? YLohia
 (posted 2020-03-19 10:09:07.0) Hello, thank you for contacting Thorlabs. Unfortunately, TO-can laser diodes cannot be used to set up a Littrow ECL configuration because both facets of the diode chip must be accessible (please see schematic here : https://www.thorlabs.com/images/TabImages/Exlaser_Fig5.gif). A Littman configuration, however, is still possible with the proper gain chip. More information can be found on our tutorial here : https://www.thorlabs.com/tutorials.cfm?tabID=F7DFA931-5AFA-441B-8176-292D8735B143. We recommend using our SAF gain chips for this purpose: https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=3913 ersen.beyatli
 (posted 2017-09-18 13:25:39.743) This set is very useful for my applications is it possible to change the diode driver with LDC240C. If it is ok for you can you prepare a quotation for me?
thanks wskopalik
 (posted 2017-09-19 03:02:35.0) This is a response from Wolfgang at Thorlabs. Thank you very much for your feedback.
We will be able to offer this configuration as a special item. I will contact you directly to provide a quotations. johncmetcalf
 (posted 2017-06-05 11:50:33.953) https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=2437
BNC diagram label for Temp Out is mislabeled. tcampbell
 (posted 2017-06-06 02:57:47.0) Response from Tim at Thorlabs: Thank you for pointing out this error. We have corrected the second BNC female connector label to read "Analog Temperature Control Output." a_chehrghani
 (posted 2016-06-28 01:41:22.24) Hello.
I have a complete laser diode set with LDC205C and TED200C controllers and TCLDM9 mount. I am ganna to handle a 660nm laser diode (L660P120). I set its pins according to catalog (C style configuration: it's ground pin inserted in 3 O'clock position), but when I want to drive the laser, the "open led" in LDC205C panel turn on. The LD and PD polarity was set to CG and AG respectively and the PD Polarity in LDC205C panel was set to CG.
Could you help me to resolve this error. user
 (posted 2016-06-10 07:46:28.367) Hello, how necessary is the temperature controller? shallwig
 (posted 2016-06-14 04:32:30.0) This is a response from Stefan at Thorlabs. Thank you very much for your inquiry. The need of active cooling with a temperature controller depends on the power consumption of the driven laser diode and how much electrical power gets converted into optical power and heat. To avoid damaging the laser diode and getting a stable laser output it is recommended to keep the temperature on a constant level.
As you left no contact information please contact me at europe@thorlabs.com for any further questions. sfzmousavi
 (posted 2015-10-10 08:49:26.33) Hi
I need this package (LTC100-C) but instead of LDC205C, I need LDC220C (that is until 2A). Is this change possible for you? And if it is possible, how much this new package would cost?
I am looking forward to hearing back from you.
Regards jvigroux
 (posted 2015-10-12 11:35:59.0) A response from Julien at Thorlabs: Thank you for your feedback. We will be able to offer this configuration as a special item, we will contact you directly to provide a quote. shallwig
 (posted 2015-04-01 04:34:42.0) This is a response from Stefan at Thorlabs. Thank you very much for your inquiry. Together with the controllers you get the accessories mentioned on the homepage under “included items” and shown on the top image on the website: http://www.thorlabs.com/NewGroupPage9.cfm?ObjectGroup_ID=2437
The LTC100-B includes a collimation optic with AR coating for 600-1050nm. With this Kit you will be able to drive your laser diode and collimate the beam. I will contact you directly to check if there are any further optics or optomechanics necessary for your application. user
 (posted 2015-03-31 12:44:26.627) Will this LTC100B come with a collimate tube or focus tube? What should I buy together with this product other than a laser diode? dingwuwen
 (posted 2014-06-26 16:13:14.257) I'd like to know if I want to use the FPL1059T 1650 nm Fabry-Perot Laser Diode with the LTC100-C, which molded aspheric lenses should I chose?
I want to use the FPL1059T 1650 nm Fabry-Perot Laser Diode. Will the molded aspheric lenses in the LTC100-C work for the FPL1059T? Or which molded aspheric lenses should I chose? jlow
 (posted 2014-08-01 01:36:04.0) Response from Jeremy at Thorlabs: The appropriate lens choice will depend on the output beam diameter you are looking for. The lens included in the current LTC100-C is the C230TMD-C, which can be used with the FPL1059T kedves
 (posted 2014-04-07 15:56:09.99) Dear Thorlabs,
Is it possible to order a Complete Laser Diode Operation Starter Set with an LDC201CU or LDC202C current controller, instead of an LDC205C? Could you please send a quotation for these?
Thanks, cdaly
 (posted 2014-04-08 07:17:02.0) Response from Chris at Thorlabs: Thank you for your inquiry. We have offered these kits with different controllers in the past. I will contact you directly to have a quote started for you. Future inquiries for custom versions can be sent to us directly at techsupport@thorlabs.com. bdada
 (posted 2012-01-25 20:01:00.0) Response from Buki at Thorlabs:
Yes, cables for the controllers are included in the kit. Please contact TechSupport@thorlabs.com if you have further questions. user
 (posted 2012-01-26 08:05:27.0) I can not find in the page but does cables come with the kit? sharrell
 (posted 2012-01-23 11:21:00.0) An Additional Response from Sean at Thorlabs: We will soon add an LTC100 kit with an AR coated lens for 400 - 600 nm as a stock catalog item. For more details, please contact techsupport@thorlabs.com. bdada
 (posted 2012-01-23 08:48:00.0) Response from Buki at Thorlabs:
We can provide you with a custom LTC100 kit with an AR coated lens for 400 - 600nm. We do not have your contact information, so please email TechSupport@thorlabs.com to get a quote. user
 (posted 2012-01-19 14:04:16.0) Hi, is this Laser Diode Operation Starter Set compatible with short wavelenght laser diodes, for example, HL40023MG?
If so, then the accessories for 600-1050 nm or 1050-1550 nm are not needed, right?
Thanks, jvigroux
 (posted 2012-01-10 09:38:00.0) A response from Julien at Thorlabs: Hello. Yes this is correct. If you would like to have more information about those laser diode drivers and their compatibility, please feel free to contact us a techsupport@thorlabs.com bslalit
 (posted 2012-01-10 01:22:38.0) Hello, So I can use LDC205C and the TED200C with the mount LM14S2 and laser diode FPL1053S. Is that so ? jvigroux
 (posted 2012-01-09 11:17:00.0) A response from Julien at Thorlabs: Hello Lalit, this diode will work fine with the LDC205C and the TED200C which are comprised within the LTC100-C and a LM14S2 bslalit
 (posted 2012-01-09 05:46:32.0) Hello
Thanks for the reply.
We are planning to use FPL1053S laser diode alongwith LM14S2 and LTC100-C . Are they compatible according to the TEC specifications as you said LM14S2 does not has TEC element ?
Regards
Lalit jvigroux
 (posted 2012-01-09 04:12:00.0) A response from Julien at Thorlabs: Thank you for your inquiry. The controllers Laser diode driver and temperature controller) used in the LTC100 are directly compatible wit the LM14S2 and support all hardware features of this mount. Please note that the LM14S2 does not contain any TEC element as those are normally integrated within the butterfly mount such that in order to check the compatibility of the temperature controller with your system, one would need to check the specs of its TEC element. bslalit
 (posted 2012-01-09 00:41:01.0) I want to know whether LTC100-c is compatible with LM14S2(Butterfly Laser Diode Mount). Regards Lalit jjurado
 (posted 2011-07-11 16:34:00.0) Response from Javier at Thorlabs to richardson.leao: Thank you very much for your interest in our products. We can certainly offer a version of the LTC100-B with the 2A LDC220C controller. I will contact you directly to start the quotation process. richardson.leao
 (posted 2011-07-11 00:22:07.0) Can I have this kit with the 2A laser controller instead? If so, what would be the price? Cheers
richardson Javier
 (posted 2010-06-11 09:04:41.0) Response from Javier at Thorlabs to dnmessias: We can offer a special configuration of the LTC100-B with an LDC220C controller. We will contact you directly with a quotation. dnmessias
 (posted 2010-06-10 19:09:20.0) I would like to use a similar kit with diode laser of hig her power, about 1 W. Is it possible to replace the LDC205C driver by the LDC220C one? In this case, how can I obtain a cotation?
Best regards
Djalmir N Messias jjurado
 (posted 2010-06-01 08:50:43.0) Response from Javier at Thorlabs to kobiadi: our distributor for Israel is Rosh Electroptics. You may contact them for sales and general inquiries at info@roshelop.co.il. For technical inquiries about our products, you may contact us directly at techsupport@thorlabs.com. kobiadi
 (posted 2010-05-30 03:44:13.0) Dear Sir / Madame,
If you have an Israelian representive I would like to speak to him about the LTC100B and even other products (detector system).
Best regards,
Kobi Jakobsohn |
LDMXY Adapter Specifications | |
---|---|
Flexure | |
Optic Cell Travel | ±1.0 mm |
Optic Cell Threading | SM1 (1.035"-40) Through Tapped |
XY Adjusters | M3 x 0.25 (250 μm/rev) |
Slip Plate | |
Slip Plate Travel | ±1.0 mm (Coarse Adjustment) |
Cage Compatibility | 4-40 Taps (8 Places) for 30 mm and 60 mm Cage Systems |
General | |
Material | Aluminum |
Dimensions | 4.00" x 4.00" x 0.60" (101.6 mm x 101.6 mm x 15.2 mm) |
Mass | 0.33 kg (0.73 lbs) |
- SM1ネジをXY方向にフレクシャ移動(移動量:±1.0 mm)
- ケージシステム用タップ穴付きスリッププレートは可動部(移動量:±1.0 mm)とは別体
- 30 mmと60 mmケージシステム対応
- LDMシリーズの半導体レーザーマウント前面に直接取り付け可能
フレクシャーアダプタLDMXYはコリメート用光学素子などをXY方向に±1.0 mm移動させます。移動式光学セルはSM1ネジ付きで当社の非球面レンズアダプタや非球面レンズが取り付けられます。前面のスリッププレート自体もSM1ネジ付きの光学セルとは独立にXY方向に±1.0 mm粗移動します。スリッププレートには30 mmおよび60 mmケージシステムに対応したケージロッド用ネジ穴があります。そのため、スリッププレートに取り付けたケージシステムの荷重は、フレクシャー機構部分から隔離されます。スリッププレートは4個の標準的なキャップスクリュを緩めて調整します。アダプタLDMXYを半導体レーザーマウントに取り付ける際にも4個の固定ネジを使用します。すべてのネジは2.0 mmボール(六角)ドライバや六角レンチが使用可能です。
Click to Enlarge
LDMXYは作動距離を伸ばしたいときやXY移動にお使いいただけます。
Click to Enlarge
XY方向のフレクシャ機構がSM1ネジ付きの光学セルを移動(ケージシステムのスリッププレートは固定)
取付けフランジLDM56DJは、532 nm DPSSレーザを温度制御付きマウントLDM56/Mに取付けるために使用します。使用する際は、レーザDJ532-10またはDJ532-40をマウントLDM56/Mに取り付けます。フランジかマウント自体に付いている2つの2-56×3/8"のキャップスクリュで、マウントにフランジを取付けます。
注:こちらのフランジは温度制御付き半導体レーザーマウントLDM56/Mには付属しておりません。