Melles-Griot 58-GCB-020-031 532nm 200mW TEC-cooled DPSS Laser
Melles-Griot 58-GCB
The warranty seals were all unbroken. The unit looks new.
The unit takes 30 seconds to "warm up" before a beam is emitted.
Replaced the bayonet fiber connector with F-SMA. Seems to 
work okay. Might need a collimator.

        
    
    







DB-15 Pins:
    1 - unknown
    2 - interlock 
    3 - unknown
    4 - unknown
    5 - unknown
    6 - unknown    
    7,8 - ground
    9,10 - +5V 2A    
    11 - 
    12 - 
    13 - 
    14 -
    15 - 
    
Switch:
   on - off    
    
Trimpots:
    current
    power
    temperature
    



















Outside face of the circuit board.



Orange and blue wires from feedback sensor.



The Peltier TEC (thick red and black wires) 
is clamped between the pump diode block and 
the heatsink by white nylon bolts. 




















Test specimen: crocoite from Tasmania.