In order to simplify manufacturing, stocking, and ordering, a number of standard sizes and orientations have been defined. If the size and orientation that you want is not listed here, please send a Request For Quotation to us!

Different orientations, crystallographically speaking, refer to the angles between the beam propagation direction and the crystallographic direction of the optic axis.

All of the orientations that are listed here are Type I, meaning that the polarization directions of the two longest wavelengths in the mixing process are in the same direction; the shortest wavelength in the mixing process has an orthogonal polarization direction.

Examples of tuning applications are given for each crystal cut; other applications are possible.

ZGP Single Crystals — Standard Orientations
Type I Angle, q	Operation	Size	Coating Description
"69°"	SHG 9.6 µm	6 x 6 x 10 mm	AR double peak 9.6/4.8 µm
"53°" or "55°"	OPO with 2.09 µm pump	6 x 8 x 12 mm	AR 2.09 µm / 3.5 µm – 5 µm
		6 x 8 x 15 mm
		6 x 8 x 20 mm
		6 x 8 x 25 mm
		6 x 12 x 12 mm
		6 x 12 x 15 mm
		6 x 12 x 20 mm
		6 x 12 x 25 mm

Calculated tuning curves for a Type I ZGP OPO are shown below, based on the index data of Barnes and of Ghosh. Curves for pumps of both 2.05 µm and 2.09 µm are shown.

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Barnes, J.Opt.Soc.Am. B 15(1) 232 (1998).
Ghosh, Applied Optics 37(7) 1205 (1998).

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