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Optical Engineering

Multi-wavelength graphene-based Q-switched erbium-doped fiber laser
Author(s): Junqing Zhao; Peiguang Yan; Shuangchen Ruan; Yongqin Yu; Geguo Du; Gelin Zhang; Jianqun Cheng; Huifeng Wei; Jie Luo
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Paper Abstract

We investigate on a multi-wavelength operation erbium-doped fiber laser Q-switched by a graphene-based saturable absorber. Stable pulses were generated with the widths from 6.9 to 1.5 μs, energies from 40.4 to 130.2 nJ and repetition rates from 68.32 to 132.9 kHz, when the pump power increased from 142.32 to 441.86 mW. A fiber Bragg grating with five reflective peaks was inserted into the fiber ring through an optical circulator, resulting in a stable output of five-lasing-wavelength output. The laser can perform as a low-cost and easy-built all fiber light source, and has potential applications in the fields where pulses at multi-wavelength operation are needed, i.e., temperature or strain fiber sensors.

Paper Details

Date Published: 6 July 2012
PDF: 5 pages
Opt. Eng. 51(7) 074201 doi: 10.1117/1.OE.51.7.074201
Published in: Optical Engineering Volume 51, Issue 7
Show Author Affiliations
Junqing Zhao, Shenzhen Univ. (China)
Peiguang Yan, Shenzhen Univ. (China)
Shuangchen Ruan, Shenzhen Univ. (China)
Yongqin Yu, Shenzhen Univ. (China)
Geguo Du, Shenzhen Univ. (China)
Gelin Zhang, Shenzhen Univ. (China)
Jianqun Cheng, Shenzhen Univ. (China)
Huifeng Wei, Yangtze Optical Fibre and Cable Co., Ltd. (China)
Jie Luo, Yangtze Optical Fibre and Cable Co., Ltd. (China)

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