Thorlabs ITC4005QCL Laser Diode / Temperature Controller

Description

Features
High Compliance Voltage Supports High-Power QCLs
17 V for ITC4002QCL
20 V for ITC4005QCL
Drive Lasers with Operating Currents ≤2 A (ITC4002QCL) or  ≤5 A (ITC4005QCL)
Continuous Wave (CW) or Quasi-Continuous Wave (QCW) Operation
Also Capable of Driving leds
Active Power Management for Efficient Operation
Excellent Temperature Stability: 0.002 °C (24 hrs)
Digital PID Control with Separate P, I, D Settings
Auto PID Tuning Function
Adjustable Temperature Sensor Offset
Item #
a
ITC4002QCL
ITC4005QCL
Current Control Range
0 to 2 A
0 to 5 A
Compliance Voltage
17 V
20 V
Photocurrent Measurement Ranges
2 mA / 20 mA
QCW
b
Mode Pulse
Width Range
100 µs to 1 s
QCW
c
Repetition
Rate Range
1 ms to 5 s (0.2 to 1000 Hz)
TEC Current Range
-15 to +15 A
d
TEC Compliance Voltage
>15 V
TEC Output Power (Max)
>225 W
Temperature Range (Max)
-55 to +150 °C
c
Supported Temperature
Sensors
Thermistors (
TH10K
), Pt100 (
TH100PT
), Pt1000,
AD590
, AD592, LM335, LM235, LM135, LM35
For complete specifications, see the
Specs
tab. The ITC4002QCL and ITC4005QCL have high compliance voltages designed to support our high-power QCLs. Information on the compatibility of this driver with our QCLs and ICLs can be found on the Drivers tab
Quasi-Continuous Wave
The applicable control range depends on the sensor parameters.
The TEC current limit is set to a low value before the unit is shipped, and needs to be increased by the user in order to enable thermal regulation.
ThorlabsCombined Laser Current and TEC Controllers are designed with a high compliance voltages of 17 V (ITC4002QCL) or 20 V (ITC4005QCL), enabling support for our entire selection of  (QCLs). These devices combine the functionality of an
LDC4000
series current controller an into a single controller. The ITC4002QCL and ITC4005QCL supply precise, stable currents for lasers with a maximum operating current of 2 A or 5 A, respectively. Both devices provide excellent temperature stabilization to within 0.002 °C over a period of 24 hrs. For optimal noise performance, choose a controller that has maximum current and voltage ratings as close as possible to, but still higher than, the required voltage and current needed to operate your laser.
The controllers are compatible with all laser diode and monitor diode pin configurations, as well as our two-tab C-mount QCL and ICL packages. They feature a constant current (CC) or constant power (CP) mode. Most common temperature sensors can be used, and the contollers can be adapted to different thermal loads via a digital PID controller, which can operate through the built-in auto-tune PID function or separate control of the P, I, and D parameters. For more details about these features, please see the
More Info
tab.
The ITC4002QCL and ITC4005QCL can be controlled via front panel keys and intuitive operation menus on a large and easy-to-read graphic LCD display (see the
Display
tab for sample screens). Alternatively, these controllers can be controlled by a SCPI-compatible USB Interface. Higher settings and measurement resolution are offered via USB operation, since the front panel resolution is limited by the resolution and refresh rate of the front panel display. Various outputs and a digital I/O port offer many control and connectivity options. The built-in function generator allows analog modulation of the laser output out of the box.
These controllers offer many advanced features such as Quasi-Continuous Wave (QCW) operation mode, easy auto-tune PID, and diverse laser and TEC element protection (see the
More Info
tab). The controller design also provides silent and power-efficient operation. These features make the ITC4002QCL and ITC4005QCL ideal choices for safe and secure operation of medium- to high-power QCLs, ICLs, and laser diodes either in the lab or in production environment