Near-Infrared Soliton Mode-Locked Thulium Doped Fibre Laser Using WS2-ZnO Composite Material as Saturable Absorber
Document Type
Article
Publication Date
1-1-2019
Abstract
The generation of a highly stable passive mode locking laser is realized in a thulium doped fibre laser using a WS2-ZnO composite as a saturable absorber. Soliton mode locking pulses are generated with a central wavelength of 1936 nm and full-width half maximum (FWHM) of 3.06 nm. The first order Kelly's side band is located at around 5.65 nm from the central wavelength which gives the calculated pulse width value of 1.26 ps. This value corresponds well with the measured pulse width of 1.27 ps using the autocorrelator. The output power of the laser is around 0.44 mW with the peak power of 29.7 W and repetition rate of 9.96 MHz. This laser set-up is highly robust and realizes highly stable laser pulses in the mid-IR wavelength range for a multitude of applications. © 2009-2012 IEEE.
Keywords
2 micron, Fiber Laser, Thulium
Divisions
PHYSICS,photonics
Funders
Ministry of Higher Education, Malaysia under Grants LRGS (2015)/ NGOD / UM / KPT and GA 010-2014 (ULUNG),University of Malaya under Grants RU 013-2018 and HiCoE Funding Phase II
Publication Title
IEEE Photonics Journal
Volume
11
Issue
5
Publisher
Institute of Electrical and Electronics Engineers (IEEE)