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1. 发明申请

WO02082166A3 VARIABLE OPTICAL SOURCE 审中-公开
标题翻译：可变光源
公开(公告)号：WO02082166A3
公开(公告)日：2003-07-03
申请号：PCT/US0210612
申请日：2002-04-03
申请人： CIDRA CORP
发明人： DAVIS MICHAEL , KERSEY ALAN D , MOON JOHN , DUNPHY JAMES , SIRKIS JAMES , PINTO JOSEPH , SZCZEPANEK PAUL
IPC分类号： G02B6/34 , G02B6/35 , G02B26/08 , G02B27/10 , H04J14/02 , H04Q11/00 , G02B6/42
CPC分类号： G02B6/2931 , G02B6/278 , G02B6/29311 , G02B6/29313 , G02B6/29314 , G02B6/29394 , G02B6/29395 , G02B6/29398 , G02B6/3516 , G02B6/356 , G02B6/3588 , G02B6/359 , G02B26/0841 , G02B27/1006 , G02B27/1073 , G02B27/1086 , H04J14/021 , H04J14/0213 , H04J14/0221 , H04Q2011/0009 , H04Q2011/0018 , H04Q2011/0026
摘要： A variable optical source (801) to selectively provide a desired optical output signal in response to a control signal is provided. The optical source includes an optical filter that attenuates a broadband optical input signal or a multi-spectral input signal (802). The optical filter is controllable or programmable to selectively provide a desired filter function. The optical filter (10) includes a spatial light modulator (36), which may comprise an array of micromirrors (52) that effectively forms a two-dimensional diffraction grating mounted in a retro-reflecting configuration. The input optical signal is dispersed onto the array of micromirrors (52) along a spectral axis or direction (55) such that input light is spread over a plurality of micromirrors to effectively pixelate the light. The broadband light or signals of the multi-spectral input light is selectively attenuated by flipping or tilting a selected number of micromirrors to thereby deflect a portion of the incident radiation away from the return optical path. The micro-mirrors operate in a digital manner by flipping between a first and second position in response to a control signal (56) provided by a controller (58) in accordance with an attenuation algorithm and an input command (60).
摘要翻译：提供了用于响应于控制信号选择性地提供期望的光输出信号的可变光源（801）。光源包括衰减宽带光输入信号或多光谱输入信号的滤光器（802）。光学滤波器是可控的或可编程的，以选择性地提供期望的滤波器功能。滤光器（10）包括空间光调制器（36），其可以包括有效地形成安装在回射构造中的二维衍射光栅的微镜阵列（52）。输入光信号沿着光谱轴或方向（55）分散在微镜阵列（52）上，使得输入光分布在多个微镜上以有效地使光像素化。多光谱输入光的宽带光或信号通过翻转或倾斜选定数量的微镜来选择性地衰减，从而使一部分入射辐射偏离返回光路。响应于根据衰减算法和输入命令（60）由控制器（58）提供的控制信号（56），微镜以数字方式操作，通过在第一和第二位置之间翻转。

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