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MIDDLE INFRARED LASER SOURCE AND LASER SPECTROSCOPY APPARATUS

机译：中红外激光源和激光光谱仪

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摘要

PROBLEM TO BE SOLVED: To provide a light source causing less fluctuations in laser beam output and suitable for absorption spectrum.;SOLUTION: A middle infrared laser source comprises: an excitation light source 100; a signal light source 101; a signal generator 102 modulating the wavelength of the signal light source 101; a wavelength conversion element 105 including an optical waveguide composed of a periodically polarization-inverted two-dimensional nonlinear optical material; a photodetector 115 detecting light passing through a reference cell 110 filled with reference substance; a lock-in amplifier 116 extracting a specific frequency component from the detection signal of the photodetector 115; and a PID control circuit 117 performing feedback control to the signal light source 101 based on the component extracted by the lock-in amplifier 116. The light source modulating the wavelength and the light source controlling the wavelength based on the optical signal passing through the reference cell 110 are unified into the signal light source 101 outputting the wavelength with lower end surface reflection rate of the wavelength conversion element 105.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT

机译：解决的问题：提供一种在激光束输出中引起较小波动并适合吸收光谱的光源。解决方案：中红外激光源包括：激发光源100;信号光源101;信号发生器102调制信号光源101的波长;波长转换元件105，其包括由周期性偏振反转的二维非线性光学材料构成的光波导。光电检测器115检测穿过填充有参考物质的参考单元110的光;锁定放大器116从光电检测器115的检测信号中提取特定频率分量; PID控制电路117基于由锁定放大器116提取的成分对信号光源101进行反馈控制。调制波长的光源和基于通过基准的光信号控制波长的光源单元110被合并到信号光源101中，该信号光源101输出具有波长转换元件105的较低端面反射率的波长。;选择图：图1;版权：（C）2018，JPO＆INPIT

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公开/公告号JP2018017989A

专利类型
公开/公告日2018-02-01

原文格式PDF
申请/专利权人 NIPPON TELEGR & TELEPH CORP NTT;
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申请/专利号JP20160149622
发明设计人 TAKENOUCHI HIROKAZU;UMEKI TAKESHI;ENBUTSU KOUJI;KASHIWAZAKI TAKAHIRO;TOKURA AKIO;TADANAGA OSAMU;KAZAMA TAKUSHI;
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申请日2016-07-29
分类号G02F1/377;H01S5/0687;G01J3/42;G01J3/10;G01N21/3504;G01N21/01;H01S5/40;H01S5/022;
国家 JP
入库时间 2022-08-21 13:11:48

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