Coherent Laser Preventive Maintenance

There are really only 2 items of preventive maintenance for the Coherent Chameleon II lasers:

1. Chiller fluid should be replaced avery 3 months, and documented on the chiller. Robert from Coherent will send us the new reommended chiller solution.

2. Drierite in the MRU-7 should be checked every 3-6 months and replaced if not completely blue. A sign of humidity is if 720-750 does not mode-lock because of water absorption.