All-fiberized, mode-locked laser at 1.95 mu m using copper chalcogenide Cu2Te-based evanescent field interaction
Document Type
Article
Publication Date
12-1-2020
Abstract
For the first time, a copper telluride (Cu2Te) based saturable absorber (SA) was demonstrated for mode-locking in a thulium-doped fiber laser. Layers of Cu2Te were deposited onto a side polished fiber (SPF) using the optical deposition technique, forming an all-fiber SA device. The nonlinear optical properties of the SA device were investigated based on the balanced twin-detector measurement scheme. The Cu2Te-deposited SPF SA was capable of generating stable soliton mode-locked pulses with a pulse duration of 1.58 ps at a center wavelength of 1951 nm with a signal to noise ratio (SNR) of more than 60 dB, as well as a peak power of 250 mW and a pulse energy of 0.39 nJ.
Keywords
Copper chalcogenide, Saturable absorber, Mode-locked, Thulium, Fiber laser
Divisions
PHYSICS,photonics
Funders
Universiti Malaya RU 011 - 2019,Ministry of Higher Education, Malaysia
Publication Title
Optics Communications
Volume
476
Publisher
Elsevier
Publisher Location
RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS