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Proceedings Paper

Wavelength-switchable erbium-doped fiber ring laser employing chirped Moiré fiber grating and tunable Sagnac loop interferometer filter
Author(s): Shaohua Lu; Suchun Feng; Jingjing Zheng
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Paper Abstract

A simple, cost-effective and switchable five-wavelength fiber ring laser based on a chirped moiré fiber grating (CMFG) and a wavelength-tunable Sagnac loop interferometer (FSI) filter is proposed and experimentally demonstrated. To serve as wavelength selective element, the CMFG possesses excellent comb-like filtering characteristics including stable wavelength interval and ultra-narrow passband, and its fabrication method is easy and flexible. The usage of the FSI filter helps remove the high-cost optical circulator and improve the output performance of optical signal-to-noise ratio from 50dB to 70dB. With this laser configuration, the output power fluctuation of each wavelength is less than 0.5 dB within a one-hour period, and the output power of different channels is almost identical (difference less than 1dB) within the tunable range.

Paper Details

Date Published: 17 November 2010
PDF: 7 pages
Proc. SPIE 7847, Optoelectronic Devices and Integration III, 784729 (17 November 2010); doi: 10.1117/12.869853
Show Author Affiliations
Shaohua Lu, Beijing Vocational College of Labour and Social Security (China)
Suchun Feng, Beijing Jiaotong Univ. (China)
Jingjing Zheng, Beijing Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 7847:
Optoelectronic Devices and Integration III
Xuping Zhang; Hai Ming; Alan Xiaolong Wang, Editor(s)

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