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.
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页码：644 / 649
页数：5
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共 15 条
  • [1] Cai H., Luo A., Chen G., Et al., Fiber grating filters writing in fiber coupler, J. Optoelectronics · Laser, 13, 9, pp. 979-982, (2002)
  • [2] Sergei S., Yariv O.A., Van Essen S., Coupled-mode analysis of fiber-optic add/drop filters for dense wavelength-division multiplexing, Opt. Lett., 22, 10, pp. 688-690, (1997)
  • [3] Marin E., Ghosh R., Lacroix S., Et al., Bragg grating effects in optical fiber couplers calculated by coupled supermode theory, 3542, pp. 32-42, (1998)
  • [4] Zhu S., Zhang X., Chi H., Et al., Analysis of Bragg grating assisted optical fiber symmetric couplers employing the unified coupled-mode theory, Acta Optica Sinica, 21, 8, pp. 990-995, (2001)
  • [5] Snyder A.W., Adrian Ankiewicz. Optical fiber couplers-optimum solution for unequal cores, J. Lightwave Technol., 16, 3, pp. 463-474, (1998)
  • [6] Erdogan T., Fiber grating spectra, J. Lightwave Technol., 15, 8, pp. 1277-1294, (1997)
  • [7] Liao B., Zhao Q., Feng D., Et al., Coupled-mode theory for optical fiber and its application to fiber Bragg gratings, Acta Optica Sinica, 22, 11, pp. 1340-1344, (2002)
  • [8] Liu C., Ye H., Cao X., Fiber coupler sensitive to wavelength used to demodulate wavelength shift of fiber Bragg grating, Acta Optica Sinica, 26, 11, pp. 1623-1626, (2006)
  • [9] Shuai C., Duan J., Cai G., Research on morphology and microstructure in the taper region of fused fiber devices, Acta Optica Sinica, 26, 1, pp. 121-125, (2006)
  • [10] Dong X., Pei L., Jian S., Add/drop channel filter based on fiber Bragg grating assisted coupler fabricated by asymmetric fused taper technology, Acta Physica Sinica, 55, 9, pp. 4739-4742, (2006)
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