Q-switched Tm3+-doped fiber laser with a micro-fiber based black phosphorus saturable absorber. (13th May 2016)

• Record Type: Journal Article
• Authors: Wang, Yazhou; Li, Jianfeng; Han, Lian; Lu, Rongguo; Hu, Yunxiao; Li, Zhuo; Liu, Yong
• Is Part Of: Laser physics. Volume 26:Number 6(2016:Jun.)
• Publication Date: 2016-05-13
• Subjects: black phosphorus -- saturable absorber -- micro-fiber -- Q-switched fiber laser; Lasers -- Periodicals; 621.36605
• DOI: 10.1088/1054-660X/26/6/065104
• Languages: English
• ISSNs: 1054-660X

Abstract

Abstract: We report a passively Q-switched Tm 3+ -doped fiber laser using a black phosphorus deposited micro-fiber (BPDMF) as a saturable absorption (SA) device for the first time. The BPDMF prepared by depositing black phosphorus (BP) on the micro-fiber waist with heat convention effect and optical tweezer effect has a measured modulation depth of 40.2% and a nonsaturable loss of 55.9%. By employing this device in an all-fiber ring cavity, a stable Q-switched pulse train at 1948 nm was achieved with a repetition rate from 12.5 to 28.1 kHz and a pulse width from 15.1 to 5.6 μ s, respectively.