title: A 100 W all-fiber linearly-polarized Yb-doped single-mode fiber laser at 1120 nm.
abstract: A 100 W-class all-fiber linearly-polarized single-mode fiber laser at 1120 nm with an optical efficiency of 50% was demonstrated. The laser consists of a 4.2 m long Yb-doped polarization maintaining fiber with a core diameter of 10 μm and a pair of FBGs written in matched passive fiber. Linearly polarized output with a polarization extinction ratio of 15 dB is achieved by a cavity that selects both wavelength and polarization. Pulsed operations with square shaped pulses varying from 100 μs to 1 ms duration are achieved without relaxation oscillation.
authors.affiliation: Shanghai Key Laboratory of Solid State Laser and Application, and Shanghai Institute of Optics and fine Mechanics, Chinese Academy of Sciences, Qinghe Road 390, Jiading, Shanghai 201800, China.
authors.forename: Jianhua
authors.initials: J
authors.lastname: Wang
authors.forename: Jinmeng
authors.initials: J
authors.lastname: Hu
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Xijia
authors.initials: X
authors.lastname: Gu
authors.forename: Jinbao
authors.initials: J
authors.lastname: Chen
authors.forename: Yan
authors.initials: Y
authors.lastname: Feng
mesh_terms: D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007834:Lasers; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D015018:Ytterbium