公开(公告)号：WO1994017378A1

公开(公告)日：1994-08-04

申请号：PCT/US1994000915

申请日：1994-01-25

Applicant: SPECTRA-PHYSICS LASER DIODE SYSTEMS

Inventor： SPECTRA-PHYSICS LASER DIODE SYSTEMS ,  COLE, John ,  GOODING, Phillip ,  BAER, Thomas, M. ,  KINTZ, Gregory, J. ,  HEAD, David, F. ,  COX, Kelly, A.

IPC: G01J03/44

CPC classification number: H01S3/082 ,  G01J3/1256 ,  G01J3/44 ,  G01J3/453 ,  G01N2201/06113 ,  H01S3/094038 ,  H01S3/1673

Abstract: A Fourier Transform Raman Spectrometer system includes a folded V laser cavity. A first leg of the folded V laser cavity is defined by a highly reflective end mirror and a dichroic fold mirror and a second leg of the folded V laser cavity is defined by the fold mirror and an output coupler. A solid-state laser gain medium is disposed in the first leg of the folded V laser cavity and is pumped by a pump source aligned with the optical path of the first leg of the laser cavity and radiating through the fold mirror. The fold mirror is highly transmissive at the wavelength of pump radiation from the pump source and highly reflective at the laser output wavelength. An output beam from the laser is passed through a tuneable filter comprising an acousto-optic device and is directed at a sample to be analyzed. Light reflected from the sample is directed to a Raman Spectrometer for analysis.

Abstract translation: 傅里叶变换拉曼光谱仪系统包括折叠的V激光腔。 折叠的V激光腔的第一段由高反射端镜和二向色折射镜限定，折叠的V激光腔的第二支腿由折叠镜和输出耦合器限定。 固态激光增益介质设置在折叠的V激光腔的第一支腿中，并且通过与激光腔的第一支腿的光路对齐并且通过折叠镜辐射的泵浦源来泵浦。 折射镜在来自泵浦源的泵浦辐射的波长处是高度透射的，并且在激光输出波长处具有高反射性。 来自激光器的输出光束通过包括声光器件的可调谐滤光器，并且被引导到待分析的样品。 从样品反射的光被引导到拉曼光谱仪进行分析。