Q-switched pulse generation in L-band region with polyacrylonitrile saturable absorber
Document Type
Article
Publication Date
6-1-2024
Abstract
In this study, we assess the practicality of using Polyacrylonitrile (PAN) as a saturable absorber (SA) for generating Q-switched pulses within an erbium-doped fibre laser (EDFL) cavity. A successful combination of PAN, a resin material, and polyvinyl alcohol resulted in the formation of a SA film. This film was utilised to generate stable Q-switched pulses operating in a long-wavelength band of 1572 nm. The greatest repetition rate achieved was 66.1 kHz, while the minimum pulse width was 2.43 mu s. The maximum pulse energy was achieved at 52 nJ and measured at a pump power of 175.9 mW. To the best of our knowledge, this study is the first report of EDFL passive Q-switching employing a PAN absorber.
Keywords
polyacrylonitrile, Q-switched laser, L-band, EDFL, thin film
Divisions
sch_ecs
Funders
Malaysian Ministry of Higher Education (FRGS/1/2022/TK07/UM/02/34),Malaysian Ministry of Higher Education under fundamental research grant scheme
Publication Title
Physica Scripta
Volume
99
Issue
6
Publisher
IOP Publishing
Publisher Location
TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND