发明名称 |
FBG sensor interrogation method using semiconductor optical amplifier in ring cavity configuration |
摘要 |
A sensor device that uses a number of bragg grating (FBG) sensors and novel interrogation system with a ring cavity configuration for simultaneous time-division-multiplexex (TDM) and wavelength-division-multiplexed (WDM) interrogation of FBG sensors. The ring cavity includes an amplifier, and output coupler and an optical circulator. The coupler is connected to a wavelength measuring system and the optical circulator is connected to the FBG sensors. The FBG sensors can be in a number of groups. TDM interrogation is applied to each group of FBG sensors while WDM interrogation is applied to each FBG sensors within each group.
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申请公布号 |
US7505642(B2) |
申请公布日期 |
2009.03.17 |
申请号 |
US20070878177 |
申请日期 |
2007.07.23 |
申请人 |
THE HONG KONG POLYTECHNIC UNIVERSITY |
发明人 |
TAM HWA YAW;CHUNG WENG HONG |
分类号 |
G02B6/00;G01B9/02;G02B6/34 |
主分类号 |
G02B6/00 |
代理机构 |
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主权项 |
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