A stable dual-wavelength Q-switch using a compact passive device containing photonics crystal fiber embedded with carbon platinum
Document Type
Article
Publication Date
1-1-2017
Abstract
A compact fiber laser utilizing platinum nanoparticles doped on carbon (Pt/C) embedded in photonic crystal fiber capable of generating a stable Q-switch dual-wavelength is designed and verified. Stable Q-switch pulses, with a repetition rate of 73.6 kHz, pulse width of 1.45 μs and power of 3.8 nJ in two separated wavelengths of 1557.39 nm and 1558.86 nm at a pump power of 350 mW, have been obtained. This is a novel method for generating Q-switch dual-wavelength pulses using a well-protected component that introduces both a saturable absorber and Mach-Zehnder interferometer effects simultaneously in the laser cavity. Furthermore, to best of our knowledge, this is the first time that Pt/C nanoparticles have been used in a saturable absorber for optical pulse generation.
Keywords
dual-wavelength, photonic crystal fiber, platinum nanoparticle-doped carbon, Q-switch
Divisions
photonics
Funders
University of Malaya: grants LRGS (2015) NGOD/UM/KPT and GA010-2014 (ULUNG) as well as grant RU 010-2016
Publication Title
Laser Physics
Volume
28
Issue
1
Publisher
IOP Publishing