Evanescent field interaction of 1550 nm pulsed laser with silver nanomaterial coated D-shape fiber
Document Type
Article
Publication Date
12-1-2021
Abstract
The paper presents a newly developed fiber-based saturable absorber (SA) operating at 1550 nm waveband. The fiber-based-SA constructed from side-polished fiber called D-shape fiber and with deposited silver nanoparticles act as a nonlinear material for ultrafast laser generation. The interaction between silver nanoparticles and exposed oscillated laser light in cavity were due to evanescent wave (EW) field phenomenon with 1.44% of modulation depth recorded. Stable pulse train of similar to 1.00 MHz with 2.24 ps pulse width, 10.73 nJ pulse energy, 77.83 dB high signal to noise ratio and 11 mW output power at 1563.24 nm were achieved. Our findings suggests that the properties owned by silver-coated D-shaped fiber via EW can be a great alternative towards conventional film saturable absorber.
Keywords
Nanosecond pulse laser, D-shape fiber, Erbium doped fiber
Divisions
sch_ecs
Funders
Ministry of Education of Malaysia with Fundamental Research Grant Scheme (FRGS) Project [Grant No: FP068-2019A],Fundamental Research Grant Scheme for Research Acculturation of Early Career Researchers [Grant No: 600-IRMI/FRGSRACER 5/3 (107/2019)]
Publication Title
Infrared Physics & Technology
Volume
119
Publisher
Elsevier
Publisher Location
RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS