Invention Grant
US07266260B2 FBG sensor interrogation method using semiconductor optical amplifier in ring cavity configuration
有权
FBG传感器询问方法采用半导体光放大器进行环形腔配置
- Patent Title: FBG sensor interrogation method using semiconductor optical amplifier in ring cavity configuration
- Patent Title (中): FBG传感器询问方法采用半导体光放大器进行环形腔配置
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Application No.: US11325983Application Date: 2006-01-05
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Publication No.: US07266260B2Publication Date: 2007-09-04
- Inventor: Hwa Yaw Tam , Weng Hong Chung
- Applicant: Hwa Yaw Tam , Weng Hong Chung
- Applicant Address: HK Kowloon
- Assignee: The Hong Kong Polytechnic University
- Current Assignee: The Hong Kong Polytechnic University
- Current Assignee Address: HK Kowloon
- Agency: Knobbe, Martens, Olson & Bear LLP
- Main IPC: G02B6/00
- IPC: G02B6/00 ; G02B6/34 ; G01N21/00
Abstract:
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.
Public/Granted literature
- US20070154130A1 FBG SENSOR INTERROGATION METHOD USING SEMICONDUCTOR OPTICAL AMPLIFIER IN RING CAVITY CONFIGURATION Public/Granted day:2007-07-05
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