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FBG sensor interrogation method using semiconductor optical amplifier in ring cavity configuration
FBG sensor interrogation method using semiconductor optical amplifier in ring cavity configuration
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机译:在环形腔结构中使用半导体光放大器的FBG传感器询问方法
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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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