Chinese Journal of Lasers B, 2001, 10 (3): 174, 网络出版: 2006-08-10  

Linear Quasi-chirp-free Tuning of Fiber Grating with Torsional Beam

作者单位
1 Institute of Modern Optics, Nankai University, Tianjin 300071,China
2 Gungxi University of Technology, Liuzhou 545006, China
3 National Engine Combustion Laboratory, Tianjin University, Tianjin 300072, China
摘要
Abstract
A new method of linear tuning for fiber grating with the torsional beam is reported for the first time to our knowledge. The theoretical analyses and the experimental results show that the Bragg wavelength change is linear to the torsional angle and the torque when the torsional strain of the torsional beam is very small. The linear quasi-chirp-free tuning of the fiber grating can be realized when the range of the torsional angle of the column beam is between -45°and +45°and the wavelength range of linear tuning is not less than 7 nm. Tuning sensitivities are 0.0867 nm/degree and 6.27 nm/Nm, respectively.

ZHANG Weigang, ZHANG Weigang, FENG Dejun, DING Lei, KAI Guiyun, DONG Xiaoyi, YAO Chunde. Linear Quasi-chirp-free Tuning of Fiber Grating with Torsional Beam[J]. Chinese Journal of Lasers B, 2001, 10(3): 174. ZHANG Weigang, ZHANG Weigang, FENG Dejun, DING Lei, KAI Guiyun, DONG Xiaoyi, YAO Chunde. [J]. 中国激光(英文版), 2001, 10(3): 174.

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