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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 29, Iss. 18 — Sep. 15, 2011
  • pp: 2732–2739

Graphene-Induced Nonlinear Four-Wave-Mixing and Its Application to Multiwavelength Q-Switched Rare-Earth-Doped Fiber Lasers

Zhengqian Luo, Min Zhou, Duanduan Wu, Chenchun Ye, Jian Weng, Jun Dong, Huiying Xu, Zhiping Cai, and Lujian Chen

Journal of Lightwave Technology, Vol. 29, Issue 18, pp. 2732-2739 (2011)


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Abstract

We experimentally confirm that graphene within fiber laser cavities can generate four-wave-mixing (FWM) by observing the laser spectral broadening and the transition from the single-longitudinal-mode oscillation to multiple-longitudinal-mode one. Then, by simultaneously exploiting the graphene-induced nonlinear FWM and its super-broadband saturable absorption, we further achieve for the first time to the best of our knowledge, multiwavelength Q-switched Yb3+- or Er3+-doped fiber lasers at 1 μm and 1.5 μm wavebands, respectively. Simultaneous 23-wavelength Q-switching oscillation with a wavelength spacing of 0.2 nm is stably generated at 1.5 μm waveband. The multiwavelength Q-switched pulses have the minimum pulse duration of 2.5 μs, the maximum pulse energy of 72.5 nJ and a wide range of pulse-repetition-rate (PRR) from 2.8 to 63.0 kHz. At 1 μm waveband, we also obtain five-wavelength simultaneous lasing in Q-switching regime with the pulse duration of ~3μs, pulse energy of 10.3 nJ and PRR between 39.8 and 56.2kHz.

© 2011 IEEE

Citation
Zhengqian Luo, Min Zhou, Duanduan Wu, Chenchun Ye, Jian Weng, Jun Dong, Huiying Xu, Zhiping Cai, and Lujian Chen, "Graphene-Induced Nonlinear Four-Wave-Mixing and Its Application to Multiwavelength Q-Switched Rare-Earth-Doped Fiber Lasers," J. Lightwave Technol. 29, 2732-2739 (2011)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-29-18-2732

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