Spectrum analysis for non-uniform ultra-long-period fiber grating

被引：1

作者：

Fan H. ^{[1
]}

Zhang W. ^{[1
]}

Yan A. ^{[1
]}

Jiang M. ^{[1
]}

Qu K. ^{[1
]}

Wang S. ^{[1
]}

Wang K. ^{[1
]}

机构：

[1] Key Laboratory of Opto-Electronic Information and Technology, Institute of Modern Optics, Nankai University

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2010年 / 37卷 / 06期

关键词：

Chirped; Fiber optics; Spectrum analysis; Ultra long period fiber grating;

D O I：

10.3788/CJL20103706.1547

中图分类号：

学科分类号：

摘要：

Based on the Fourier transforming of fiber grating refractive index modulation, a new analysis method is proposed from the spectral analysis, which is suitable for non-uniform ultra-long-period fiber grating (ULPFG). Also the coupled-mode equations are derieved for the non-uniform grid distribution and modulate depth. The method points out that the non-uniform ULPFG can be equivalent to the superposition of different uniform gratings. Numerical simulation and experiment about a non-uniform ULPFG indicated that this method, based on spectrum analysis, has an obvious advantages to analyze: 1) the effection on spectrum impacted by the grid number or the chirp size; 2) the phenomenon that one location with multiple resonance peaks.

引用

页码：1547 / 1552

页数：5

共 20 条

[1] Erdogan T., Fiber grating spectra, J. Lightwave Technol., 15, 8, pp. 1277-1294, (1997)
[2] Bhatia V., Vengsarkar A.M., Optical fiber long-period grating sensors, Opt. Lett., 21, 9, pp. 692-694, (1996)
[3] Vengsarkar A.M., Lemaire P.L., Judkins J.B., Et al., Long-period fiber gratings as band-rejection filter, J. Lightwave Technol., 14, 1, pp. 58-64, (1996)
[4] Kersey A.D., Davis M.A., Patrick H.J., Et al., Fiber grating sensors, J. Lightwave Technol., 15, 8, pp. 1442-1463, (1997)
[5] Wu Z., Dong X., Zhang W., Et al., The transmission of chirped long-period fiber gratings, Acta Scientiarum Naturalium Universitatis Nankaiensis, 35, 2, pp. 10-14, (2002)
[6] Liu C., Zhang W., Jiang M., Et al., Study on self-induced chirping for fiber Bragg grating, Acta Optica Sinica, 28, 9, pp. 1671-1674, (2008)
[7] Guo T., Liu B., Zhang W., Et al., Research on optical fiber grating chirp-sensing technology, Acta Optica Sinica, 28, 5, pp. 828-834, (2008)
[8] Shu X.W., Zhang L., Bennion I., Fabrication and characteristics of ultra long period fibre gratings, Opt. Commun., 203, 3-6, pp. 277-281, (2002)
[9] Yan A., Zhang W., Jiang M., Et al., Numerical simulation calculation on spectrum properties of ultra long period fiber grating, Chinese J. Lasers, 36, 3, pp. 672-676, (2009)
[10] Zhu T., Rao Y.J., Wang J.L., Characteristics of novel ultra-long-period fiber gratings fabricated by high-frequency CO<sub>2</sub> laser pulses, Opt. Commun., 277, 1, pp. 84-88, (2007)

← 1 2 →