发明名称 |
Simultaneous interrogation of multi wavelength-modulated fiber optical sensors by modulating an arrayed waveguide grating based demultiplexer |
摘要 |
A compact interrogator for the simultaneous interrogation of multi wavelength-modulated fiber optical sensors, includes a planar waveguide based demultiplexer receiving input signals from the sensors. An array of detectors is coupled to output waveguides of the demultiplexer corresponding to different nominal wavelengths. A tuning element matches the nominal wavelengths of the output waveguide to the input signals from the respective sensors to find the wavelengths of the individual sensors to be interrogated.
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申请公布号 |
US7283692(B2) |
申请公布日期 |
2007.10.16 |
申请号 |
US20050214783 |
申请日期 |
2005.08.31 |
申请人 |
NATIONAL RESEARCH COUNCIL OF CANADA |
发明人 |
XIAO GAOZHI;ZHAO PING;SUN FENGGUO;LU ZHENGUO;ZHANG ZHIYI;GROVER CHANDER P. |
分类号 |
G01B9/00;G02B6/12 |
主分类号 |
G01B9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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