CONFIGURATION: DISC, PLANE-PARALLEL
DIAMETER: 0.500″+/-.002″
THICKNESS: 0.067″ NOMINAL TO YIELD RETARDATION TOL
EDGE BEVEL: 0.005″ MAXIMUM X 45deg, 2 PLACES.
RETARDATION: 25/2 WAVES AT 1064 NANOMETERS.
17/2 WAVES AT 1550 NANOMETERS.
RETARDATION TOLERANCE: LAMBDA/150
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: M-PLANE
COATING: DUALBAND ANTIREFLECTIVE COATING FOR
< 0.5% R AT BOTH 1064nm AND 1551nm WITH A
COATING DAMAGE THRESHOLD FOR 10-ns PULSES
AT 100 Hz >5 J/cm FOR 1064 nm OPO PUMP
AND 3 J/cm2 FOR 1551 OPO SIGNAL. COATING
MUST SURVIVE LONG TERM OPERATION AT FULL
POWER AT SPECIFIED FLUENCES AND
REPETITION RATE.