Spatial Compensators (BBO)

Spatial Compensators (BBO)
Spatial Compensators (BBO)

For spatial compensation of the angle dependent phase from a SPDC crystal.
Matched to the SPDC crystal with the same material and the same cut angle.

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Specifications of  BBO Compensators:

Wavefront distortion: less than λ/8 @ 633 nm
Clear aperture: > 90% central area
Flatness: λ/8 @ 633 nm
Scratch/Dig: 10/5 to MIL-O-13830A
Parallelism: better than 20 arc seconds
Angle tolerance:   Δθ < +/-0.25o, Δφ < +/-0.25o

Coating:  Dual AR@405/810 nm for 405 nm pumped SPDC crystals
              Broadband P-coating for pumps other than 405nm unless coating is specified.


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