1. Repair Items 1) Laser tube replacement and Alignment 2) High voltage power supply Replacement 3) AOM driver realignment 4) Control board repair and adjust 5) Final test 6) The time required : After acceptance, 3~6weeks(Including test result and data) 2. Performance test data 1) Output beam power : Over 1.3mW 2) Polarization : Collinear, Orthogonally linear polarized 3) Frequency stability (Δf/f ) : ~ 1x10-8 4) Output stability : ± 0.002 (3-sigma) 5) Reference frequency : 20MHz ± 1600Hz 6) Expectation lifetime : Over 25,000 hour(3 years)