THORLABS LDM21, User Manual

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LDM21 Chapter 3: Setup
Page 3 Rev K, September 11, 2018
Chapter 3 Setup
3.1. Laser Installation
1. Unpack the laser mount and remove the four 2-56 socket-head screws
from the front cover using a 5/64" hex driver (provided).
2. Remove the two Phillips head 2-56 screws from the laser-mounting
flange and remove the flange.
3. Determine the laser pin configuration from the laser diode
manufacturer’s data sheets and set the LD (Laser Diode) and PD
(Photodiode) switches located on the inside of the unit according to
Figure 2.
Figure 2 Polarity Switch Settings
LD
Style A
Style B
Style C
Style D
AG CG
PD
CG AG
LD
AG CG
PD
CG AG
LD
AG CG
PD
CG AG
LD
AG CG
PD
CG AG
Case
LD
PD
LD PD
LD
PD
LD
PD
Case
Case
Case