THORLABS LDM21, Руководство пользователя

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LDM21 Chapter 3: Setup
TTN013394-D02 Page 6
Pin Signal Description
1
Interlock
(LDC Specific)
This pin is the input to the Interlock Circuits. When using
Thorlabs LDCs, no external circuitry is required.
2
Photodiode
Cathode
This pin is connected to the 9 o’clock pin on the laser
socket when the PD Polarity Switch is set to AG (Anode
Grounded). 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 CG (Cathode Grounded).
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 photo diode.
4
Photodiode
Anode
This pin is connected to the 9 o’clock pin on the laser
socket with the PD Polarity Switch is set to CG (Cathode
Grounded). 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 (Anode Grounded).
5 Interlock Return
This pin is the return side of the Interlock circuitry. Pin 1
and 5 are shorted internally in the LDM21.
6 N/A
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 (Anode
Grounded). Otherwise, it is floating.
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 (Cathode
Grounded). Otherwise it is floating.
9 N/A
3.5. TEC Controller Connections
Using the Thorlabs TED Series TEC Controllers:

The LDM21 is best used with Thorlabs TED200 or related TEC
Controllers. The TED series are shipped with a mating DB9 cable that
plugs directly into the controller and laser mount. Using the cable
supplied with the TED, the controller cannot be connected incorrectly.
Simply connect the cable included with the TED to the Laser Mount and
to the controller.
Using a third-party TEC 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 to the
right for laser connections.