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

Meng Jiang; Ping P. Shum; Bo Lin; Swee Chuan Tjin; Yang Jiang

doi:10.1117/12.904451

29 November 2011 A stable dual-wavelength single-longitudinal-mode fiber laser with a tunable wavelength spacing based on a chirped phase-shifted grating filter

Meng Jiang, Ping P. Shum, Bo Lin, Swee Chuan Tjin, Yang Jiang

Author Affiliations +

Proceedings Volume 8307, Passive Components and Fiber-Based Devices VIII; 83070M (2011) https://doi.org/10.1117/12.904451
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

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.

Citation Download Citation

Meng Jiang, Ping P. Shum, Bo Lin, Swee Chuan Tjin, and Yang Jiang "A stable dual-wavelength single-longitudinal-mode fiber laser with a tunable wavelength spacing based on a chirped phase-shifted grating filter", Proc. SPIE 8307, Passive Components and Fiber-Based Devices VIII, 83070M (29 November 2011); https://doi.org/10.1117/12.904451

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