Stable narrow linewidth ring fiber laser with a passive fiber Bragg grating Fabry-Perot etalon and a fiber saturable absorber

Zhiyong Dai; Bo Wu; Zengshou Peng; Zhonghua Ou; Yongzhi Liu

doi:10.1117/12.806925

9 February 2009 Stable narrow linewidth ring fiber laser with a passive fiber Bragg grating Fabry-Perot etalon and a fiber saturable absorber

Zhiyong Dai, Bo Wu, Zengshou Peng, Zhonghua Ou, Yongzhi Liu

Author Affiliations +

Proceedings Volume 7158, 2008 International Conference on Optical Instruments and Technology: Microelectronic and Optoelectronic Devices and Integration; 715817 (2009) https://doi.org/10.1117/12.806925
Event: International Conference of Optical Instrument and Technology, 2008, Beijing, China

Abstract

Narrow linewidth fiber lasers have become more and more necessary in field of coherent communication, fiber optic sensor, and high resolutions optical spectrum analysis, especially long-range distributed fiber sensing system. In this paper, a simple and stable narrow linewidth Er³⁺ -doped ring fiber laser is first proposed and experimentally demonstrated. In the cavity, a passive fiber Bragg grating Fabry-Perot (FBG F-P) etalon acts as mode-selecting device to greatly reduce the longitudinal-mode density, while a section un-pumped Er³⁺ -doped fiber serves as a saturable absorber to ensure the single longitudinal-mode (SLM) operation. Meanwhile the stability of lasing frequency is further improved by controlling the temperature of the FBG F-P, and then through varying the temperature the lasing wavelength tuning is achieved also. Finally stable SLM laser at 1550nm with linewidth about 7.5 kHz, maximum output power 39 mW and the corresponding slope efficiency 30% is acquired.

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Zhiyong Dai, Bo Wu, Zengshou Peng, Zhonghua Ou, and Yongzhi Liu "Stable narrow linewidth ring fiber laser with a passive fiber Bragg grating Fabry-Perot etalon and a fiber saturable absorber", Proc. SPIE 7158, 2008 International Conference on Optical Instruments and Technology: Microelectronic and Optoelectronic Devices and Integration, 715817 (9 February 2009); https://doi.org/10.1117/12.806925

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KEYWORDS

Fiber Bragg gratings

Fiber lasers

Fabry–Perot interferometers

Spatial light modulators

Reflectivity

Reflectors

Spectrum analysis

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