Mixed Transition Metal Dichalcogenide as Saturable Absorber in Ytterbium, Praseodymium, and Erbium Fiber Laser
Document Type
Article
Publication Date
1-1-2018
Abstract
In this paper, a Mo(1-x)WxS2 thin film saturable absorber (SA) is proposed and fabricated and its performance over a wavelength region of 1.0 to 1.5 μ {m} investigated. The few layer MoWS2 is obtained by hydrothermal exfoliation and fabricated into thin film with a host polymer. The SA is tested in a ring laser cavity with different gain media consisting of Ytterbium, Praseodymium, and Erbium doped fibers for Q-switching operation at 1.0, 1.3, and $1.56~ μ m. In all cases, the SA performs admirably with the mixed transition metal composition of the MoWS2 thin film allowing the optical properties of the SA to be altered by changing the composition ratio and the number of layers. The proposed SA has high potential as a new optical material to cater the needs of many optoelectronics application.
Keywords
mixed transition metal dichalcogenide, molybdenum tungsten disulfide, Q-switched laser, saturable absorber
Divisions
photonics
Funders
Ministry of Higher Education Malaysia, under Grant LRGS (2015)/ NGOD /KPT/UM and Grant GA 010–2014 (ULUNG),University of Malaya under Grant RU 001–2017
Publication Title
IEEE Journal of Quantum Electronics
Volume
54
Issue
3
Publisher
Institute of Electrical and Electronics Engineers (IEEE)