发明名称 |
Optical device incorporating a tilted bragg grating |
摘要 |
The invention relates to an optical waveguide device for monitoring a characteristics of light, e.g. a wavelength. The device incorporates a waveguide, such as an optical fiber, with an embedded tilted Bragg grating operating in a regime of wavelength detuning. The grating is designed to disperse light azimuthally in two or more different directions about the fiber axis, said directions changing with wavelength. A photodetector array is provided for detecting the azimuthal distribution of light. A processor coupled to the photodetector array determines wavelength information from the detected azimuthal distribution of the out-coupled light.
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申请公布号 |
US7245795(B2) |
申请公布日期 |
2007.07.17 |
申请号 |
US20050272871 |
申请日期 |
2005.11.15 |
申请人 |
HER MAJESTY THE QUEEN IN RIGHT OF CANADA AS REPRESENTED BY THE MINISTER OF INDUSTRY, THROUGH THE COMMUNICATIONS RESEARCH CENTRE CANADA |
发明人 |
WALKER ROBERT;MIHAILOV STEPHEN J.;LU PING;GROBNIC DAN;DAI XIAOLI;DING HUIMIN;HENDERSON GEORGE;SMELSER CHRISTOPHER |
分类号 |
G02B6/12 |
主分类号 |
G02B6/12 |
代理机构 |
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