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Proceedings Paper

High signal-to-noise ratio linear cavity multiwavelength erbium-doped fiber laser with two intracavity fiber periodic filters
Author(s): Yanfeng Zhang; Yong Yao; Qi Wang
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Paper Abstract

A new linear cavity multi-wavelength erbium-doped fibre laser with enhanced signal-to-noise ratio characteristics is demonstrated. The laser system is developed by two steps from a conventional ring cavity configuration which consists of a frequency-shifted cavity and single multi-wavelength filters. Firstly, the noises characteristic is improved about 2.8 dB on an average with the inset of a dual-pass Mach-Zender interferometer and shifting the station of output coupler However, the output power is suppressed about 1.5 dB on an average by the change. Next, the noises characteristic is further improved by about 4.3dB against the conventional ring cavity configuration and the output power is increased by about 1.8 dB by utilizing a special Bragg grating array replacing the F-P filter to compose a linear cavity configuration.. The emitting range with output flatness better than 3dB covers 20nm wavelengths from 1540 to 1560 nm, with line spacing of 0.8nm and average output power of 0.8dBm.The linear cavity multi-wavelength erbium-doped fibre laser with high signal-to noise ratio can be useful in a wavelength division multiplexing transmission system.

Paper Details

Date Published: 10 January 2005
PDF: 6 pages
Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); doi: 10.1117/12.575649
Show Author Affiliations
Yanfeng Zhang, Harbin Institute of Technology (China)
Yong Yao, Harbin Institute of Technology (China)
Qi Wang, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 5623:
Passive Components and Fiber-based Devices
Yan Sun; Shuisheng Jian; Sang Bae Lee; Katsunari Okamoto, Editor(s)

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