Analysis of fiber grating filters written in fiber coupler by employing the unified coupled-mode theory

被引：0
|
作者：
Jiang W. [1 ,2 ]
Li J. [1 ,2 ]
Zhao R. [1 ,2 ]
Wei Y. [1 ,2 ]
Dong X. [1 ,2 ]
Pei L. [1 ,2 ]
Jian S. [1 ,2 ]
机构：
[1] Institute of Lightwave Technology, Beijing Jiaotong University
[2] Key Laboratory of All Optical Network and Advanced Telecommunication Network, Beijing Jiaotong University
来源：
Guangxue Xuebao/Acta Optica Sinica | 2010年 / 30卷 / 03期
关键词：
Fiber grating; Fiber grating filters written in fiber coupler; Filtering response; Fused taper;
D O I：
10.3788/AOS20103003.0644
中图分类号：
学科分类号：
摘要：
By introducing the grating refractive modulation into the evanescent field coupling, the unified coupled-mode equation for all kinds of fiber grating filters written in fiber coupler is obtained, which parameters have specific physical meaning. The filtering response of three kinds of fiber grating filters written in fiber coupler are analyed by numerical methed of Broyden and shooting. The influences of relative parameters on the filtering response characteristics are investigated theoretically. Drop channel efficiency of 95%, 85% and 99% can be obtained for grating assisted coupler, grating reflection coupler and grating frustrate coupler by optimizing parameters. Grating assisted coupler and grating reflection coupler are fabricated with reflectivity 15 and 18 dB.
引用
收藏
页码：644 / 649
页数：5
相关论文
共 15 条
  • [11] Dong L., Hua P., Birks T.A., Et al., Novel add/drop filters multiplexing optical for wavelength division fiber systems using a Bragg grating assisted mismatch coupler, IEEE Photon. Technol. Lett., 8, 12, pp. 1656-1658, (1996)
  • [12] Dong X., Xu O., Lu S., Et al., Design and experiment of add/drop filter based on double-fiber-Bragg-gratings coupler, Chinese J. Lasers, 34, 8, pp. 1106-1109, (2007)
  • [13] Dong X., Design and fabrication of all-fiber add/drop filter, (2006)
  • [14] Archambault J.L., St.Russell P.J., Bacelos S., Et al., Grating-frustrated coupler: a novel channel dropping filter in single-mode optical fiber, Opt. Lett., 19, 3, pp. 180-182, (1994)
  • [15] Dong X., Pei L., Jian S., Narrow bandwidth add-drop channel filter based on fiber-Bragg-grating-coupler, Chinese J. Lasers, 33, 5, pp. 621-625, (2006)
12