ASYMMETRIC LONG PERIOD FIBER GRATINGS FABRICATED BY THE FOCUSED CO2 LASER BEAM CARVING PERIODIC GROOVES ON THE FIBER

摘要：

A novel asymmetric long period fiber grating (LPFG) with a large attenuation of up to -47.39dB and a low insertion loss of down to 0.34dB is fabricated by the focused CO2 laser beam carving periodic grooves on the single side of optical fiber. Such periodic grooves and the stretch-induced periodic microbends enhance effectively refractive index modulation in the LPFG so that the average strain sensitivity of resonant wavelength is increased by 229 times and is up to -102.89nm/mε. And the LPFGs resonant wavelength and transmission attenuation can be tuned by ～ 12nm and ～ 20dB, respectively, by the application of a stretching force.

关键词： long period fiber grating periodic grooves,microbends CO2 laser strain sensitivity asymmetry

作者: Yi-Ping Wang D. N. Wang Wei Jin Yun-Jiang Rao

作者单位: Department of Electrical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, P. R Department of Electrical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, P. R School of Communication and Information Engineering, University of Electronic Science and Technology

会议类型: 国际会议

会议名称: The 5th International Conference on Optical Communications and Networks & the 2nd International Symposium on Advances and Trends in Fiber Optics and Applications(第5届国际光通信与网络年会暨第2届纤维光学发展现状与未来趋势国际学术研讨会)

会议地点: 成都

会议语种:英文

页码: 162-165

在线出版日期: 2006-09-18（万方平台首次上网日期，不代表论文的发表时间）