TY - GEN
T1 - Novel technique and algorithm of signal interrogation in multi-channel fiber bragg sensing system
AU - Jie, Bi
AU - Xiaolei, Zhang
AU - Yongjun, Wang
AU - Xiangjun, Xin
AU - Qi, Zhang
AU - Yongchao, Liu
PY - 2011
Y1 - 2011
N2 - To improve the capability and detection precision of the Fiber Bragg sensing system, the novel interrogation technique and detection algorithm based on the tunable ring laser and multiplexing technology are proposed for the multi-channel Fiber Bragg grating sensing system, which can realize the real-time monitoring of 32 channels more than 1,000 FBG sensors. Here, we use the comb filter as multi-wavelength reference instead of the traditional reference grating array. Moreover, a fast wavelength detection algorithm based on the half-power point is proposed. Compared to the Gaussian fitting algorithm, the interrogation method can be greatly improved in the precision, flexibility and working reliability.
AB - To improve the capability and detection precision of the Fiber Bragg sensing system, the novel interrogation technique and detection algorithm based on the tunable ring laser and multiplexing technology are proposed for the multi-channel Fiber Bragg grating sensing system, which can realize the real-time monitoring of 32 channels more than 1,000 FBG sensors. Here, we use the comb filter as multi-wavelength reference instead of the traditional reference grating array. Moreover, a fast wavelength detection algorithm based on the half-power point is proposed. Compared to the Gaussian fitting algorithm, the interrogation method can be greatly improved in the precision, flexibility and working reliability.
KW - Comb filter
KW - Fiber bragg gating (FBG) sensors
KW - Finite impulse response (FIR) filter
KW - Multiplexing
KW - Tunable ring laser
UR - http://www.scopus.com/inward/record.url?scp=85086613833&partnerID=8YFLogxK
U2 - 10.1364/acp.2011.831125
DO - 10.1364/acp.2011.831125
M3 - Conference contribution
AN - SCOPUS:85086613833
SN - 9780819489555
T3 - Optics InfoBase Conference Papers
BT - Asia Communications and Photonics Conference and Exhibition, ACP 2011
PB - Optical Society of America (OSA)
T2 - Asia Communications and Photonics Conference and Exhibition, ACP 2011
Y2 - 13 November 2011 through 16 November 2011
ER -