Ultrafast L Band Soliton Pulse Generation in Erbium-Doped Fiber Laser Based on Graphene Oxide Saturable Absorber

• Published in: Crystals
• Main Author: Haris H.; Batumalay M.; Jin T.S.; Muhammad A.R.; Markom A.M.; Anyi C.L.; Izani M.H.; Razak M.Z.A.; Megat Hasnan M.M.I.; Saad I.
• Format: Article
• Language: English
• Published: MDPI 2023
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85146888197&doi=10.3390%2fcryst13010141&partnerID=40&md5=d99e837a67be23300689a7e98f4ff2dd
• ISSN: 20734352
• DOI: 10.3390/cryst13010141

We demonstrate a simple mode-locked Erbium-doped fiber laser (EDFL) based on self-synthesized saturable absorber (SA) by combining graphene oxide (GO) and polyethylene oxide (PEO) solutions to form a GO-PEO thin film. This thin film was incorporated into an Erbium-doped fiber laser (EDFL) with a cavity length of 9 m. Our EDFL could operate at a 22 MHz repetition rate with a 0.8 ps pulse duration. The laser also showed stable soliton pulses under various laser pump power values. Our reported results show that GO-PEO SA is effective and proven as a cost-effective material for saturable absorbers for EDFLs. © 2023 by the authors.