PolyU Institutional Repository >
Electrical Engineering >
EE Patents >
Please use this identifier to cite or link to this item:
|Title: ||FBG sensor interrogation method using semiconductor optical amplifier in ring cavity configuration|
|Authors: ||Tam, Hwa-yaw|
|Subjects: ||Fiber bragg grating sensors|
Time division multiplexing interrogation
|Issue Date: ||17-Mar-2009 |
|Citation: ||US Patent 7,505,642 B2. Washington, DC: US Patent and Trademark Office, 2009.|
|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.|
|Rights: ||Assignee: The Hong Kong Polytechnic University.|
|Appears in Collections:||EE Patents|
Patents of PolyU
All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
No item in the PolyU IR may be reproduced for commercial or resale purposes.