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1. 发明申请

WO2006053444A1 DEVICE AND METHODS UTILIZING OPTICAL WAVEGUIDE EMBEDDED BLAZED REFRACTIVE GRATINGS 审中-公开
标题翻译：使用光波形嵌入式BLAZED REFRACTIVE GRATINGS的器件和方法
公开(公告)号：WO2006053444A1
公开(公告)日：2006-05-26
申请号：PCT/CA2005/001769
申请日：2005-11-22
申请人： MCMASTER UNIVERSITY , YANG, Chun , XU, Chang-Qing
发明人： YANG, Chun , XU, Chang-Qing
IPC分类号： G02B6/24 , G02B6/34 , G01J3/18
CPC分类号： G02B6/4215 , G01J3/02 , G01J3/0205 , G01J3/0229 , G01J3/0256 , G01J3/1895 , G02B6/2852 , G02B6/29323
摘要： In a broad aspect, the invention is an optical device that comprises an optical waveguide having a blazed Bragg grating such that at least a portion of the light coupled from a guided mode into radiation light beam or beams. The light outcoupled by the blazed fiber grating is focused onto a intermediate image on an intermediate image plane at a first predetermined position peculiarly depending on the wavelength of the light and the effective refractive index of the guided mode from which the light is coupled. The invention may comprise a spatial light modulator placed at the intermediate image plane which serves to control phase and amplitude components of the light beam or beams. More significantly, the invention further comprises a final focusing component which may be a lens used to focus the light beam exiting the spatial light modulator onto a final image on small area such that light intensity is increased and thereby the detection sensitivity is improved. The invention furthermore comprises a light receiver which could be a photodetector or a photodetector array used to detect the final image.
摘要翻译：在广泛的方面，本发明是一种光学装置，其包括具有闪耀的布拉格光栅的光波导，使得至少一部分光从导模耦合到辐射光束或光束中。由闪耀的光纤光栅耦合的光在特定地取决于光的波长和光耦合的引导模式的有效折射率的第一预定位置处聚焦在中间像平面上的中间图像上。本发明可以包括放置在中间图像平面处的空间光调制器，其用于控制光束或光束的相位和幅度分量。更明显地，本发明还包括最终聚焦组件，其可以是用于将从空间光调制器出射的光束聚焦到小区域上的最终图像的透镜，使得光强度增加，从而提高检测灵敏度。本发明还包括光接收器，其可以是用于检测最终图像的光电检测器或光电检测器阵列。

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