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PRO8 Rack Controllers

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PRO8 Laser Diode Current & Temperature Control Modules




  • Low Laser Current Noise
  • Built-in Laser Diode Protection Features
  • 2Versions:Separate or Single Output Connectors

6 Versions to Choose from:

  • 2 Versions (Single, Dual Connector) ±200 mA / 16 W Dual Connector LD and TEC Controller: ITC8022
  • 2 Versions (Single, Dual Connector) ±500 mA / 16 W Dual Connector LD and TEC Controller: ITC8052
  • 2 Versions (Single, Dual Connector) ±1 A / 16 W Dual Connector LD and TEC Controller: ITC8102

Features:

  • 3 Different Laser Current Ranges: ±200 mA, ±500 mA and ±1 A
  • TEC Cooling Power: ±2 A / 16 W
  • Supports All Laser and Monitor Diode Polarities (AG / CG)
  • Supports Constant Current (CC) and Constant Power (CP) Mode
  • Low Noise and Highly Stable Operation
  • Multiple Built-In Laser Diode Protection Features
  • Excellent Temperature Stability (up to <0.001 °C)
  • Support for Thermistor & IC Sensors
  • Adjustable P, I and D-Settings of the PID Servo Loop for Optimal Temperature Settling Time

(AG = Anode Grounded, CG = Cathode Grounded)

Combination Current & Temperature Control Modules
The ITC8000 Series Modules are combination Laser Diode and TEC Temperature Controllers for the PRO8 platform. These modules offer laser drive current ranges of 0 to ±200mA, 0 to ±500 mA, and 0 to ±1 A. All three models incorporate a TEC Controller that provides up to ±2 A/16 W.

Each ITC8000 Series combination module comes in two versions, either with a 9-pin connector for laser current output and a 15-pin connector for TEC current output, ITC8000 Series or with a common 15-pin connector for both laser and TEC current output, ITC8000DS15 Series

Extremely Low Noise
The combination controller modules of the ITC8000 Series all feature exceptionally low laser current noise (see Specs Tab), and exceptional temperature stability of better than 0.002 °C (AD590). All of the ITC8000 Series Modules offer the same great performance independent of the mode of operation - constant current (CC), or constant power (CP).

User-Friendly Controls
The PRO8 display menu allows to configure any module in the chassis. Mneumonic symbols provide user-friendly access to all operational parameters. All settings are retained in memory and automatically recalled upon powering on the mainframe as long as modules are not being moved to a different slot.

Built-In Laser Diode Protection Features
The ITC8000 Series Modules incorporate proven laser protection features to safeguard sensitive laser diodes. Besides common protection functions, such as current limits, laser current soft start, and interrupt protection, an advanced circuit design ensures that AC power-line transients or power outage, as well as RF pickup, can not effect the laser diode. Additionally, a temperature window can be set that will shut the laser down in the event the high or low thresholds of the window are exceeded.

The ITC8000 Series Modules meet the international requirements regarding laser protection (e.g. CDRH US21 CFR 1040.10). All modules include a key-operated power switch and interlock, plus many additional features.

Calibrating the Power Display
The display of the laser power can easily be calibrated with respect to the laser's monitor diode current to provide a direct optical power read-out. This is accomplished by adjusting the “CALPD” calibration constant that is accessed via the front panel soft keys or the computer interface. Please note, an optical power meter is required for this setting procedure. See our Power Meter Family for more details.

Setting the Temperature ControlLoop
The P- (gain), D- and I- settings of the PID control loop can each be set independently to optimize the temperature response of the system to different thermal loads.

Connection Cables
Depending on the ITC8000 version, different cables are required to connect the modules to a Thorlabs' Laser Diode Mount. The ITC80XX models, with 2 seperate connectors, require the CAB400 for the laser controller and the CAB420-15 cable for the temperature controller. The ITC80XXDS15 models, with one single connector, require the CAB430 cable. The cables have to be ordered separately.

 


Laser Diode Current Controller Connection Cable

 
Male 9 Pin Connector Diagram
Pin Connections
1 Interlock and Status LASER
ON/OFF
2 Photodiode
3 Laser Diode Ground
4 Photodiode
5 Ground for Pin 1
6 Voltage Measurement Laser Diode Cathode
7 Laser Diode Cathode (with Polarity Anode Grounded - AG)
8 Laser Diode Anode (with Polarity Cathode Grounded - CG)
9 Voltage Measurement Laser Diode Anode

 


Temperature Controller Connection Cable

 
Female 9 Pin Connector Diagram
Pin Connections
1 Status LED (+) (for TEC ON/OFF indication), CAB430: N.C.
2 Thermistor (+)
3 Thermistor (-), Ground
4 TEC (+)
5 TEC (-), Status LED (-)
6 N.C.
7 Transducer AD 590/592 (-), LM 135/335 (+)
8 N.C.
9 Transducer AD 590/592 (+), LM 135/335 (+)
Male 15 Pin Connector Diagram for CAB420-15
Pin Connections
1 Status LED (+) (for TEC ON/OFF indication)
2 N.C.
3 Thermistor (-), Ground
4 Thermistor (+)
5 TEC (+)
6 TEC (+)
7 TEC (+)
8 LM 135/335 (-), Ground
9 N.C.
10 Transducer AD 590/592 (-), LM 135/335 (+)
11 Transducer AD 590/592 (+), LM 135/335 (+)
12 N.C.
13 TEC (-), Status LED (-)
14 TEC (-), Status LED (-)
15 TEC (-), Status LED (-)

 


Laser Diode Current Controller and Temperature Controller Connection Cable

 
Male 9 Pin Connector Diagram
Pin Connections
1 Interlock and Status LASER
ON/OFF
2 Photodiode
3 Laser Diode Ground
4 Photodiode
5 Ground for Pin 1
6 Voltage Measurement Laser Diode Cathode
7 Laser Diode Cathode (with Polarity Anode Grounded - AG)
8 Laser Diode Anode (with Polarity Cathode Grounded - CG)
9 Voltage Measurement Laser Diode Anode
Female 9 Pin Connector Diagram
Pin Connections
1 Status LED (+) (for TEC ON/OFF indication), CAB430: N.C.
2 Thermistor (+)
3 Thermistor (-), Ground
4 TEC (+)
5 TEC (-), Status LED (-)
6 N.C.
7 Transducer AD 590/592 (-), LM 135/335 (+)
8 N.C.
9 Transducer AD 590/592 (+), LM 135/335 (+)
Male 15 Pin Connector Diagram for CAB430
Pin Connections
1 Interlock and Status LASER ON/OFF
2 Photodiode
3 Laser Diode Ground
4 Photodiode
5 Ground for Pin 1
6 Transducer AD 590/592 (+), LM 135/335 (+)
7 TEC (+)
8 TEC (-)
9 Voltage Measurement Laser Diode Cathode
10 Laser Diode Cathode (with Polarity Anode Grounded - AG)
11 Laser Diode Anode (with Polarity Cathode Grounded - CG)
12 Voltage Measurement Laser Diode Anode
13 Transducer AD 590/592 (-), LM 135/335 (+)
14 Thermistor (-), Ground
15 Thermistor (+)

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