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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 7, Iss. 1 — Jan. 1, 2009
  • pp: 23–25

A novel successive demultiplexing scheme based on optical-CDMA balanced demodulation for FBG sensor systems

Huijuan Dong, Jian Wu, and Guangyu Zhang  »View Author Affiliations


Chinese Optics Letters, Vol. 7, Issue 1, pp. 23-25 (2009)


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Abstract

In order to increase the multiplexing density of the fiber Bragg gratings (FBGs) for a low cost per-sensor, based on the analysis of the spectrum shadow distortion (SSD), a novel successive demultiplexing scheme for FBG sensors has been developed. It is based on the optical code division multiple access (CDMA) balanced demodulation. A high-density multiplexing-demultiplexing system for FBG sensors has been designed, and corresponding simulation carried out has demonstrated that the FBG sensors' reflective signals can still be obtained accurately and respectively, even if FBG sensors' operating bandwidths heavily overlap. The SSD has been greatly mitigated.

© 2009 Chinese Optics Letters

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4230) Fiber optics and optical communications : Multiplexing
(060.4250) Fiber optics and optical communications : Networks

Citation
Huijuan Dong, Jian Wu, and Guangyu Zhang, "A novel successive demultiplexing scheme based on optical-CDMA balanced demodulation for FBG sensor systems," Chin. Opt. Lett. 7, 23-25 (2009)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-7-1-23


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