Newlight Photonics Inc. – Your source for BBO, LBO, BiBO, KTP, KTA, Nd:YAG, Nd:YVO4 crystals, polarizers, waveplates ...

Part No.	Dimension	Cut Orientation	Coatings	In stock
RTP3100X	3x3x10mm	X	X-faces AR coated @1064nm, Z-faces Au coated	Email/Call
RTP4100X	4x4x10mm	X	X-faces AR coated @1064nm, Z-faces Au coated	Email/Call
RTP6070X	6x6x7mm	X	X-faces AR coated @1064nm, Z-faces Au coated	Email/Call
RTP3100Y	3x3x10mm	Y	Y-faces AR coated @1064nm, Z-faces Au coated	Email/Call
RTP4100Y	4x4x10mm	Y	Y-faces AR coated @1064nm, Z-faces Au coated	Email/Call
RTP6070Y	6x6x7mm	Y	X-faces AR coated @1064nm, Z-faces Au coated	Email/Call

Transmitting wavefront distortion: less than λ/8 @ 633 nm

Dimension tolerance: (W +/- 0.1 mm) x (H +/- 0.1 mm) x (L + 0.2 mm/-0.1mm)

Clear aperture: > 90% central area

Flatness: λ/8 @ 633 nm

Scratch/dig: 10/5 to MIL-O-13830A

Parallelism: better than 20 arc seconds

Perpendicularity: 30 arc minutes

Angle tolerance: Δθ < +/-0.25o, Δφ < +/-0.25o

Crystal orientations

The crystals are X-cut or Y-cut.

Paired crystals

RTP crystals for EO modulation are typically used in "thermally compensated double-crystal configurations" as show below, in which two matched crystals are placed along the propagation axis with one rotated by 90 deg. from the other. The equivalent length of the EO modulator is 2 x of the individual crystal length.

Coatings

The crystals are anti-reflection (AR) coated on the entrance/exit faces at the specified central wavelength. Gold (Au) coatings are deposited on Z-faces for the high voltage electrodes. Uncoated crystals are available upon request.