6 July 2012 Multi-wavelength graphene-based Q-switched erbium-doped fiber laser
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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.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Junqing Zhao, Junqing Zhao, Peiguang Yan, Peiguang Yan, Shuangchen Ruan, Shuangchen Ruan, Yongqin Yu, Yongqin Yu, Geguo Du, Geguo Du, Gelin Zhang, Gelin Zhang, Jianqun Cheng, Jianqun Cheng, Huifeng Wei, Huifeng Wei, Jie Luo, Jie Luo, } "Multi-wavelength graphene-based Q-switched erbium-doped fiber laser," Optical Engineering 51(7), 074201 (6 July 2012). https://doi.org/10.1117/1.OE.51.7.074201 . Submission:

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