公开(公告)号：WO03060606A2

公开(公告)日：2003-07-24

申请号：PCT/US0301276

申请日：2003-01-15

Applicant: RAYTHEON COMPANY A CORP OF THE

Inventor： FUKUMOTO JOSEPH M

IPC: G02F1/355 ,  G02F1/39 ,  H01S3/08

CPC classification number: G02F1/3551 ,  G02F1/3553 ,  G02F1/39 ,  G02F2201/16 ,  G02F2201/17 ,  G02F2201/18 ,  G02F2201/34 ,  G02F2203/05 ,  G02F2203/58 ,  H01S3/0809

Abstract: An arrangement 10 for efficiently generating tunable pulsed laser output at 8-12 microns. The arrangement 10 includes a laser 12, a first optical parametric oscillator 14 of unique design, and a second optical parametric oscillator 22. The first oscillator 14 is constructed with an energy shifting crystal 20 and first and second reflective elements 16 and 18 disposed on either side thereof. Energy from the laser 12 at a first wavelength is shifted by the crystal and output at a second wavelength. The second wavelength results from a secondary process induced by a primary emission of energy at a third wavelength, the third wavelength resulting from a primary process generated from the first wavelength in the crystal. Mirror coatings are applied on the reflective elements 16 and/or 18 for containing the primary emission and enhancing the secondary process. The second optical parametric oscillator 22 then shifts the energy output by the first OPO 14 at the second wavelength to the desired fourth wavelength. In the illustrative embodiment, the first optical parametric oscillator 14 includes an x-cut ribidium titanyl arsenate crystal 20 and the second optical parametric oscillator 22 includes a silver gallium selenide crystal. The first wavelength is approximately 1.06 microns, the second wavelength is approximately 3.01 microns, the third wavelength is approximately 1.61 microns, and the fourth wavelength is in the range of 8-12 microns.

Abstract translation: 用于有效地产生8-12微米的可调脉冲激光输出的装置10。 该装置10包括激光器12，独特设计的第一光学参量振荡器14和第二光学参量振荡器22.第一振荡器14由能量转换晶体20构成，第一和第二反射元件16和18设置在任一个 侧。 来自第一波长的激光器12的能量被晶体偏移并以第二波长输出。 第二波长是由第三波长的能量的初次发射引起的第二波长，由从晶体中的第一波长产生的初级波长产生的第三波长。 镜面涂层施加在反射元件16和/或18上，用于容纳初级发射并增强次级过程。 第二光学参量振荡器22然后将第二OPO 14的能量输出在第二波长处移动到期望的第四波长。 在说明性实施例中，第一光学参量振荡器14包括x切割的硫酸钛铁酸锂晶体20，第二光学参量振荡器22包括银镓硒晶体。 第一波长约为1.06微米，第二波长约为3.01微米，第三波长约为1.61微米，第四波长在8-12微米的范围内。