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1. 发明申请

US20140009763A1 SYSTEMS AND METHODS REDUCING COHERENCE EFFECT IN NARROW LINE-WIDTH LIGHT SOURCES 有权
标题翻译：系统和方法降低窄线宽光源的相干效应
公开(公告)号：US20140009763A1
公开(公告)日：2014-01-09
申请号：US13541146
申请日：2012-07-03
申请人： Jun BAO , Michael Haidar SHAHINE , Hua JIAO , Jean-Luc ARCHAMBAULT
发明人： Jun BAO , Michael Haidar SHAHINE , Hua JIAO , Jean-Luc ARCHAMBAULT
IPC分类号： H01S3/10 , G01N21/55
CPC分类号： G01M11/3118 , G01N21/55
摘要： Systems and methods are described for reducing coherence effect in narrow line-width light sources through various modulation techniques. The systems and methods can include a narrow line-width laser source with a thermoelectric cooler thermally coupled thereto and a controller communicatively coupled to the thermoelectric cooler. The controller is configured to provide a varied input signal to the thermoelectric cooler to reduce coherence of the narrow line-width laser source by artificially broadening the narrow line-width on a time averaged basis. The systems and methods can also include direct modulation of the narrow line-width laser source. The systems and methods can include a narrow line-width Optical Time Domain Reflectometer (OTDR). The systems and methods can also include direct modulation of the narrow line-width laser source with or without the varied input signal to the thermoelectric cooler.
摘要翻译：描述了通过各种调制技术降低窄线宽光源的相干效应的系统和方法。该系统和方法可以包括具有热耦合到其上的热电冷却器的窄线宽激光源和通信地耦合到热电冷却器的控制器。控制器被配置为向热电冷却器提供变化的输入信号，以通过人为地在时间平均的基础上加宽窄线宽来减小窄线宽激光源的相干性。系统和方法还可以包括对窄线宽激光源的直接调制。系统和方法可以包括窄线宽光时域反射计（OTDR）。这些系统和方法还可以包括对具有或不具有到热电冷却器的变化的输入信号的窄线宽激光源的直接调制。

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