Tunable Q-switched erbium-doped fiber laser in the C-band region using nanoparticles (TiO2)
Document Type
Article
Publication Date
1-1-2019
Abstract
A tunable, passively Q-switched fiber laser using titanium dioxide (TiO2) as saturable absorber (SA) is proposed and demonstrated. The TiO2 SA has an insertion loss and modulation depth of 2.6 dB and 19.1 % respectively. The generated laser output has a repetition rate of 83.3 kHz and pulse-width of 0.08 μs at a maximum pump power of 270.0 mW. On the other hand, tuning the operational wavelength from 1534.0 nm to 1570 nm while fixing the pump power at 70.0 mW varies the repetition rate and pulse width from 50.5 to 22.2 kHz and 1.3 to 2.7 μs respectively. The results indicate that TiO2 could be an inexpensive and efficient SA for generating passively Q-switched fiber laser.
Keywords
Q-switched, Tunable, Fiber laser, Titanium dioxide, Saturable absorber
Divisions
PHYSICS
Funders
Ministry of Higher Education, Malaysia: grants LRGS (2015) NGOD/UM/KPT and GA 010-2014 (ULUNG),University of Malaya, Malaysia: grant RU 001 - 2017
Publication Title
Optics Communications
Volume
435
Publisher
Elsevier