This auction is for a Zygo HeNe Laser for GPI Interferometer 

Uniphase 1103-2934 w/ Power Supply

These are replacement lasers used in the Zygo GPI Interferometers.

I have tested this and both the power supply and HeNE laser are in working condition.  Laser outputs 2.1mW after warmup.   

Spec power is 2.0mW.

Please ask if you have any questions.

Buyer to pay shipping.

Thanks for looking!