LiB.sub.3 O.sub.5 crystal and its nonlinear optical devices
AssigneeFujian Institute of Research On the Structure of Matter, Chinese Academy of Sciences
InventorsChen Chuangtian, Wu Yicheng, Jiang Aidong, Wu Bochang, You Guming
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Abstract
This invention relates to NLO devices made of LiB.sub.3 O.sub.5 crystals, which can be used in a laser system of high power density and relatively large divergence and possess a character of high SHG conversion efficiency. Moreover the NLO devices (including waveguide devices) of this invention are capable of producing coherent harmonics of wavelength below 2000.ANG. and tolerating larger processing error of crystals.
Claims6
A NLO device comprising means to direct at least one incident beam of electromagnetic radiation into at least one crystal having NLO properties whereby electromagnetic radiation emerging from said crystal contains at least one frequency different from the frequency of any incident beam of radiation, wherein said crystal is a single crystal of LiB.sub.3 O.sub.5.
A waveguide device comprising means to direct at least one incident beam of electromagnetic radiation into the waveguide region of at least one NLO crystal whereby radiation emerging from said waveguide region contains at least one frequency different from the frequency of any incident beam of radiation, wherein a waveguide region on the surface of said crystal and said crystal is a single crystal of LiB.sub.3 O.sub.5.
Dependencies are inferred from the claim text.