A passively Q-switched ytterbium-doped fiber laser based on a few-layer Bi2Se3 saturable absorber. (1st May 2015)

• Record Type: Journal Article
• Authors: Ahmad, H; Salim, M A M; Azzuhri, Saaidal R; Soltanian, M R K; Harun, S W
• Is Part Of: Laser physics. Volume 25:Number 6(2015:Jun.)
• Publication Date: 2015-05-01
• Subjects: Q-switched -- fiber laser -- optical pulses -- ytterbium-doped fiber; Lasers -- Periodicals; 621.36605
• DOI: 10.1088/1054-660X/25/6/065102
• Languages: English
• ISSNs: 1054-660X

Abstract

Abstract: In this work, we demonstrate a simple Q-switched pulsed ring ytterbium-doped fiber laser based on a few-layer TI:Bi2 Se3 saturable absorber (SA). Few-layer bismuth selenide within a suspension was induced onto a fiber ferrule at room temperature via an optical deposition method, resulting in a simple SA for the laser. Stable Q-switched pulsed lasing was achieved at a low pump threshold of 122.2 mW at 974 nm. The pulse repetition rate ranged from 18.97 to 45.41 kHz, and the narrowest pulse width and the maximum pulse energy were 13.1 μ s and 5.88 nJ respectively. Results indicated that TI:Bi2 Se3 was also compatible with the 1 μ m waveband, and hence could be considered a potential broadband SA for passively mode-locked and Q-switched optical fiber lasers.