Gain flattening filter with twin-core fiber

被引：1
|
作者：
Lin G. [1 ]
Zou Y. [1 ]
Dong X. [1 ]
机构：
[1] Institute of Lightwave Technology, School of Information Science and Technology, Xiamen University, Xiamen
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2010年 / 37卷 / 06期
关键词：
Amplified spontaneous emission; Erbium-doped fiber amplifier; Fiber wavelength division multiplexing coupler; Gain flattening filter; Optical communications; Twin-core fiber;
D O I：
10.3788/CJL20103706.1532
中图分类号：
学科分类号：
摘要：
Methods related to the design of gain flattening filters for amplified spontaneous emission (ASE) and erbium-doped fiber amplifier (EDFA) are reviewed. A novel scheme to realize the gain flattening filter by using a piece of twin-core fiber and a wavelength division multiplexing (WDM) coupler is proposed and verified experimentally. The spectrum of the twin-core fiber can be adjusted by bending, twisting and stretching to meet the filter requirement. The flexibility and tunable properties make the proposed all-fiber device a good candidate for gain flattening filter. The experimental results show that the ASE spectrum can be flattened in the wavelength region of 1527.36-1561.04 nm with ripples within ±0.5 dB. The results show the filters with twin-core fiber may offer great potential for optical communications and sensing applications.
引用
收藏
页码：1532 / 1536
页数：4
相关论文
共 13 条
  • [1] Thyagarajan K., Kaur J., A novel design of an intrinsically gain flattened erbium doped fiber, Opt. Commun., 183, 5-6, pp. 407-413, (2000)
  • [2] Chung H.S., Lee M.S., Lee D., Et al., Low noise, high efficiency L-band EDFA with 980 nm pumping, IEEE Electron. Technol. Lett., 35, 13, pp. 1099-1100, (1999)
  • [3] Chen G., Luo C., Optimal design of Er-doped fiber-optic amplifiers, Chinese J. Lasers, A28, 12, pp. 1117-1119, (2001)
  • [4] Xie Z., Chen G., Li T., Et al., EDFA gain flattening equalizer based on long period fiber gratings, Chinese J. Lasers, A28, 6, pp. 553-555, (2001)
  • [5] Wysocki P.F., Judkins J.B., Espindola R.P., Et al., Broadband erbium-doped fiber amplifier flattened beyond 40 nm using long-period grating filter, IEEE Photon. Technol. Lett., 9, 10, pp. 1343-1345, (1997)
  • [6] Sohn I.B., Baek J.G., Lee N.K., Et al., Gain flattened and improved EDFA using microbending long-period fiber gratings, IEEE Electron. Technol. Lett., 38, 22, pp. 1324-1325, (2002)
  • [7] Chi H., Zhao H., Zeng Q., Et al., Erbium doped fiber amplifier using fiber Bragg gratings as gain equalizer, Acta Photonica Sinica, 31, 10, pp. 1248-1251, (2002)
  • [8] Chen H.J., Yang X.L., Gain flattened erbium-doped fiber amplifier using simple equalizing film, International J. Infrared and Millimeter Waves, 20, 12, pp. 2107-2112, (1999)
  • [9] Inoue K., Kominato T., Toba H., Tunable gain equalization using a Mach-Zehnder optical filter in multistage fiber amplifier, Photonics Technology Letters, 3, 8, pp. 718-720, (1991)
  • [10] Xiao Y., He S., Design of EDFA gain flattening filter using cascaded M-Z interferometer, J. Zhejiang University (Engineering Sci.), 39, 4, pp. 487-490, (2005)
12