Material |
Single crystal quartz |
Optical axis |
Normal to faces S1, S2 of rotator |
Clear aperture |
Ø 17 mm |
Ring mount outer diameter |
25.4 mm + 0.0/- 0.2 mm |
Mount thickness |
T = 6-20 mm |
Surface quality |
20-10 scratch & dig (MIL-PRF-13830B) |
Wavefront distortion |
λ/10 |
Parallelism |
< 10 arcsec |
AR coating |
R < 0.2% both sides |
Laser damage threshold | 5 J/cm2, 10 nsec, 1064 nm typical |
EKSMA Optics Polarization Plane Rotators
66.39 kB |
As compared to a waveplate, a rotator has an intrinsic advantage of being independent of rotation around its own optical axis. It needs no adjustment, only to be installed normally to the incident radiation. A Polarization Plane Rotator is normally used for the specific wavelength. It is only slightly dependent on ambient temperature.