TY - GEN
T1 - Improvement on measuring optical nonlinear phase shift by self-aligned interferometer
AU - Yu, Chongxiu
AU - Liu, Bing
AU - Yuan, Jinhui
AU - Sang, Xinzhu
AU - Xin, Xiangjun
PY - 2010
Y1 - 2010
N2 - The measuring mechanism of the self-aligned interferometer (SI) is analyzed in detail in the paper. The expression Δ φ of nonlinear phase shift and its error expression δφ are derived. The reasons of influencing on the measuring accuracy of the nonlinear phase shift are analyzed theoretically. The influences of the SI structure parameters on measuring the nonlinear phase shift are simulated and calculated. Properly selecting structure parameters in the SI, the optimal value Δφ and δ φ are obtained. A measuring system using the optimal structure parameters is set up. The measured nonlinear phase shift Δφ coincides with the theoretical value. When compared the measured Δφ with other testing values from reference [2], the deviation Δφ obtained in our experiment is smaller. The experimental results show that the measuring method with simulating and optimizing the structure parameters in the SI is effective and convenient. The measuring method improved will be applied widely in optical fiber communications and optical precise measurements.
AB - The measuring mechanism of the self-aligned interferometer (SI) is analyzed in detail in the paper. The expression Δ φ of nonlinear phase shift and its error expression δφ are derived. The reasons of influencing on the measuring accuracy of the nonlinear phase shift are analyzed theoretically. The influences of the SI structure parameters on measuring the nonlinear phase shift are simulated and calculated. Properly selecting structure parameters in the SI, the optimal value Δφ and δ φ are obtained. A measuring system using the optimal structure parameters is set up. The measured nonlinear phase shift Δφ coincides with the theoretical value. When compared the measured Δφ with other testing values from reference [2], the deviation Δφ obtained in our experiment is smaller. The experimental results show that the measuring method with simulating and optimizing the structure parameters in the SI is effective and convenient. The measuring method improved will be applied widely in optical fiber communications and optical precise measurements.
KW - Fiber measuring triangulation
KW - Optical nonlinear phase shift
KW - Polarization filtering
KW - Self-aligned interferometer
KW - Self-phase modulation
UR - http://www.scopus.com/inward/record.url?scp=77955545999&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.437.103
DO - 10.4028/www.scientific.net/KEM.437.103
M3 - Conference contribution
AN - SCOPUS:77955545999
SN - 0878492739
SN - 9780878492732
T3 - Key Engineering Materials
SP - 103
EP - 107
BT - Measurement Technology and Intelligent Instruments IX
PB - Trans Tech Publications Ltd.
T2 - 9th International Symposium on Measurement Technology and Intelligent Instruments, ISMTII-2009
Y2 - 29 June 2009 through 2 July 2009
ER -