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Proceedings Paper

A stable dual-wavelength single-longitudinal-mode fiber laser with a tunable wavelength spacing based on a chirped phase-shifted grating filter
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Paper Abstract

A stable dual-wavelength with a tunable wavelength spacing fiber laser based on a chirped two phase-shifted grating filter is demonstrated. In the ring cavity, a chirped grating with two π-phase shifts servers as an ultra-narrow dualwavelength transmission band filter. The grating is attached in a triangular cantilever for chirp rate tuning. A semiconductor optical amplifier biased in low-gain regime is induced to reduce the gain competition of the two wavelengths caused by erbium-doped fiber. And a feedback fiber loop working as a mode filter guarantees the laser in a single-longitudinal-mode operation. Two lasing lines with different wavelength spacing from approximately 0.15 to 0.37 nm are experimentally demonstrated.

Paper Details

Date Published: 29 November 2011
PDF: 6 pages
Proc. SPIE 8307, Passive Components and Fiber-Based Devices VIII, 83070M (29 November 2011); doi: 10.1117/12.904451
Show Author Affiliations
Meng Jiang, Nanyang Technological Univ. (Singapore)
Ping P. Shum, Nanyang Technological Univ. (Singapore)
Bo Lin, Nanyang Technological Univ. (Singapore)
Swee Chuan Tjin, Nanyang Technological Univ. (Singapore)
Yang Jiang, Guizhou Univ. (China)

Published in SPIE Proceedings Vol. 8307:
Passive Components and Fiber-Based Devices VIII
Bishnu P. Pal, Editor(s)

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