A random Q-switched fiber laser

Scientific Reports
Yulong Tang, Jianqiu Xu

Abstract

Extensive studies have been performed on random lasers in which multiple-scattering feedback is used to generate coherent emission. Q-switching and mode-locking are well-known routes for achieving high peak power output in conventional lasers. However, in random lasers, the ubiquitous random cavities that are formed by multiple scattering inhibit energy storage, making Q-switching impossible. In this paper, widespread Rayleigh scattering arising from the intrinsic micro-scale refractive-index irregularities of fiber cores is used to form random cavities along the fiber. The Q-factor of the cavity is rapidly increased by stimulated Brillouin scattering just after the spontaneous emission is enhanced by random cavity resonances, resulting in random Q-switched pulses with high brightness and high peak power. This report is the first observation of high-brightness random Q-switched laser emission and is expected to stimulate new areas of scientific research and applications, including encryption, remote three-dimensional random imaging and the simulation of stellar lasing.

References

Dec 14, 2001·Nature·D S Wiersma, S Cavalieri
May 22, 2007·Applied Optics·Stuart D Jackson
Nov 13, 2007·Physical Review Letters·Christiano J S de MatosCid B de Araújo
Jan 23, 2009·Optics Express·N LizárragaE R Méndez
Aug 7, 2012·Physical Review Letters·N BachelardP Sebbah
Jul 31, 2013·Physical Review Letters·Thomas HischStefan Rotter
Aug 14, 2013·Optics Express·Srikanth SugavanamDmitry V Churkin
Sep 14, 2013·Advanced Materials·Hou Kun LiangYing Zhang
Jan 1, 2012·Nature Photonics·Brandon ReddingHui Cao

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Citations

Mar 5, 2016·Scientific Reports·Sergey A BabinEvgeniy V Podivilov
Dec 23, 2016·Scientific Reports·R MaS F Yu
Apr 5, 2017·Scientific Reports·Pierre-Henry HanzardAmmar Hideur
Jul 7, 2017·Scientific Reports·Jifang ShangJingjun Xu
Aug 25, 2016·Optics Express·Jiangming XuPu Zhou
Apr 1, 2020·Optics Express·Han WuHoukun Liang
Jan 1, 2021·Optics Express·Jialiang LvLixin Xu

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