Generation of Q-switched fiber laser at 1.0-, 1.55-and 2.0-mu m employing a spent coffee ground based saturable absorber

• Main Authors: Rusdi, Muhammad Farid Mohd, Jafry, Afiq Arif Aminuddin, Latiff, Anas Abdul, Rosol, Ahmad Haziq Aiman, Ab Rahman, Mohd Fauzi, Kasim, Nabilah, Abdul Khudus, Muhammad Imran Mustafa Abdul, Ahmad, Harith, Harun, Sulaiman Wadi
• Format: Article
• Published: Elsevier 2021
• Subjects: QC Physics; TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/34260/

Spent coffee ground (SCG) was demonstrated as saturable absorber (SA) for Wideband Q-switched fiber lasers generation. The SCG SA has a broad linear absorption that covers from 1000 nm to 2000 nm wavelength and a modulation depth of 30% at 1.55-mu m region. Through purification process, the finer SC...