title: Linearly polarized low-noise Brillouin random fiber laser.
abstract: A linearly polarized Brillouin random fiber laser (LP-BRFL) with distributed feedback along 2 km polarization-maintaining fibers (PMFs) is demonstrated. The laser was built up using a bidirectional pumping mechanism in an all-PMF configuration, yielding a radiation with 8% power efficiency and more than 25 dB polarization extinction ratio. A high lasing efficiency is achieved due to the polarization-matched Brillouin amplification and distributed feedback along kilometer long PMFs. The relative intensity noise and the thermal-induced frequency noise of this random laser have also been measured and compared to that of a custom single-mode-fiber-based random laser and a conventional phase-locked laser.
authors.forename: Liang
authors.initials: L
authors.lastname: Zhang
authors.forename: Yanping
authors.initials: Y
authors.lastname: Xu
authors.forename: Song
authors.initials: S
authors.lastname: Gao
authors.forename: Bhavaye
authors.initials: B
authors.lastname: Saxena
authors.forename: Liang
authors.initials: L
authors.lastname: Chen
authors.forename: Xiaoyi
authors.initials: X
authors.lastname: Bao