公开(公告)号：US06785041B1

公开(公告)日：2004-08-31

申请号：US10001088

申请日：2001-10-31

申请人： Konstantin Vodopyanov

发明人： Konstantin Vodopyanov

IPC分类号： G02F139

CPC分类号： G02F1/39

摘要： Method and system for providing laser light that is tunable over a relatively wide mid-infrared wavelength range, such as 2-17 &mgr;m. A first noncritically phase matched nonlinear crystal receives a laser light beam and converts the light to a first cavity beam having a first selected wavelength, using optical parametric oscillation techniques. A second noncritically phase matched nonlinear crystal receives the first cavity beam and converts the light to a second cavity beam having a second selected wavelength. Where the first wavelength is tuned (e.g., by temperature change or effective path length change) over a wavelength range of 2-5 &mgr;m, the second wavelength can vary over a higher and broader wavelength range, such as 3-17 &mgr;m.

摘要翻译： 用于提供可在相对宽的中红外波长范围（例如2-17μm）上调谐的激光的方法和系统。 使用光学参数振荡技术，第一非相位匹配非线性晶体接收激光束并将光转换成具有第一选定波长的第一空腔光束。 第二非相位匹配非线性晶体接收第一腔光束并将光转换成具有第二选定波长的第二腔光束。 在2-5μm的波长范围上第一波长被调谐（例如通过温度变化或有效路径长度变化）的情况下，第二波长可以在更高和更宽的波长范围内变化，例如3-17μm。

公开(公告)号：US06782014B1

公开(公告)日：2004-08-24

申请号：US09967173

申请日：2001-09-28

申请人： Konstantin Vodopyanov

发明人： Konstantin Vodopyanov

IPC分类号： H01S310

CPC分类号： G02F1/39 ,  G02F2001/3507 ,  G02F2001/354

摘要： Method and system for converting a first light beam having a first frequency into a second light beam having a second frequency. A pump photon having (angular) frequency 3&ohgr; (or 4&ohgr;) is provided within an optical cavity, defined by two mirrors that are fully reflecting at a frequency 2&ohgr;. In a first approach, the pump photon is received and down-converted (3&ohgr;→2&ohgr;+&ohgr;) by a first nonlinear crystal, and the 2&ohgr; photon is further down-converted (2&ohgr;→&ohgr;+&ohgr;) by a second nonlinear crystal), to produce three photons (&ohgr;+&ohgr;+&ohgr;) that exit from the cavity. In a second approach, the pump photon is received and down-converted (4&ohgr;→2&ohgr;+2&ohgr;) by a first nonlinear crystal, and one or both of the 2&ohgr; photons is further down-converted (2&ohgr;→&ohgr;+&ohgr;) by a second nonlinear crystal).

摘要翻译： 用于将具有第一频率的第一光束转换成具有第二频率的第二光束的方法和系统。 具有（角度）频率3omega（或4omega）的泵浦光子被设置在光学腔内，由两个反射镜以两个反射镜定义，频率为2omega。 在第一种方法中，泵浦光子被第一非线性晶体接收和下变换（3omega-> 2omega +ω），并且通过第二非线性晶体进一步向下转换2omega->ω+ωω ），以产生从腔体排出的三个光子（ω+ω+ω）。 在第二种方法中，泵浦光子通过第一非线性晶体被接收和下变换（4omega-> 2omega + 2omega），并且两个光子中的一个或两个被进一步下转换（2omega->ω+ω），由 第二非线性晶体）。

公开(公告)号：US06535327B1

公开(公告)日：2003-03-18

申请号：US09567908

申请日：2000-05-10

申请人： Konstantin Vodopyanov

发明人： Konstantin Vodopyanov

IPC分类号： G02F139

CPC分类号： G02F1/39 ,  G02F1/3551 ,  H01S3/1083

摘要： An optical parametric oscillator and a laser system including an optical parametric oscillator is provided for producing widely tunable coherent light over about 6 &mgr;m, such as in the range of at least about 7 &mgr;m to 18 &mgr;m range. Optical parametric oscillators in accordance with the invention advantageously include CdGeAs2 (CGA) crystals. Such crystals, in accordance with the invention can exhibit exceptionally small (

摘要翻译： 提供了一种光学参量振荡器和包括光学参量振荡器的激光系统，用于产生大约6μm的广泛可调谐的相干光，例如在至少约7μm至18μm的范围内。 根据本发明的光学参量振荡器有利地包括CdGeAs2（CGA）晶体。 根据本发明的这种晶体可以表现出非常小的（<0.1cm -1）的强度损失。 根据本发明的激光系统可以包括基于CGA晶体的倍频二氧化碳激光器作为泵浦光束和频率倍增器或变换器。