Ultrafast L band soliton pulse generation in erbium-doped fiber laser based on graphene oxide saturable absorber

• Main Authors: Hazlihan Haris, Batumalay, Malathy, Tan, Sin Jin, Ahmad Razif Muhammad, Arni Munira Markom, Anyi, Caroline Livan, Muhamad Hakim Izani, Mohd. Zulhakimi Ab. Razak, Megat Muhammad Ikhsan Megat Hasnan, Ismail Saad
• Other Authors: School of Chemistry, Chemical Engineering and Biotechnology
• Format: Article
• Language: English
• Published: 2023
• Subjects: Engineering::Chemical engineering; Pulsed Fiber Laser; Saturable Absorber
• Online Access: https://hdl.handle.net/10356/169475
• Institution: Nanyang Technological University

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.