Temperature Controlled, Laser Diode Mount
Chapter 4: Setup
Page 8
Rev N, June 26, 2015
allow the mount to drive a laser diode only (no photodiode) configuration with the LD
pins at the 3 o'clock and 9 o'clock positions.
Note: In this configuration, the PD pin will be the ground pin. Proper mounting of the
laser diode anode and cathode is required. In order to use the mount with any other
laser diode style will require undoing the modification performed above.
4.2. Laser Controller Connection
4.2.1.
Using the Thorlabs LDC/ITC Series Laser Controllers
•
The TCLDM9 is compatible with all Thorlabs LDC LD controllers and ITC
series combination controllers (LD and TEC). Appropriate cables with
DB9 connectors are included with Thorlabs controllers and ensure that
the controllers cannot be connected incorrectly. Additionally, these
controllers have built-in protection circuitry that protects the laser when
not in use.
•
The nomenclature for the Laser Diode polarity switch on the LDC/ITC
driver and the TCLDM9 are consistent with each other. For example, if
the laser polarity on the driver is set to AG (anode grounded), then the
LD polarity switch on the TCLDM9 should also be set to AG, and so forth.
•
The nomenclature for the Photo Diode polarity switch on the
LDC40xx/80xx and ITC series drivers and the TCLDM9 is as follows: The
photodiode polarity switch on the TCLDM9 must always be set to “CG”.
The photodiode polarity should be set with the internal Laser controller
switch only. For more information on how to set Polarity settings on the
Laser controller, please refer to the appropriate Laser Controller manual.
4.2.2.
Using a Third-Party Laser Controller
When using a third-party controller, a custom cable will have to be made to properly
interface to the laser mount. Please refer to the table below for laser connections.
Figure 5 Pin Out for LD Driver and TEC Driver Connectors