Wavelength-switchable erbium-doped fiber ring laser employing chirped Moiré fiber grating and tunable Sagnac loop interferometer filter

Shaohua Lu; Suchun Feng; Jingjing Zheng

doi:10.1117/12.869853

17 November 2010 Wavelength-switchable erbium-doped fiber ring laser employing chirped Moiré fiber grating and tunable Sagnac loop interferometer filter

Shaohua Lu, Suchun Feng, Jingjing Zheng

Author Affiliations +

Proceedings Volume 7847, Optoelectronic Devices and Integration III; 784729 (2010) https://doi.org/10.1117/12.869853
Event: Photonics Asia 2010, 2010, Beijing, China

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.

Citation Download Citation

Shaohua Lu, Suchun Feng, and Jingjing Zheng "Wavelength-switchable erbium-doped fiber ring laser employing chirped Moiré fiber grating and tunable Sagnac loop interferometer filter", Proc. SPIE 7847, Optoelectronic Devices and Integration III, 784729 (17 November 2010); https://doi.org/10.1117/12.869853

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