Mode-locked thulium–bismuth codoped fiber laser using graphene saturable absorber in ring cavity

• Main Authors: Zen, D.I.M., Saidin, N., Damanhuri, S.S.A., Harun, Sulaiman Wadi, Ahmad, Harith, Ismail, M.A., Dimyati, K., Halder, A., Paul, Mukul Chandra, Das, S., Pal, M., Bhadra, S.K.
• Format: Article
• Published: Optical Society of America 2013
• Subjects: QC Physics
• Online Access: http://eprints.um.edu.my/14338/; https://www.osapublishing.org/ao/abstract.cfm?uri=ao-52-6-1226

We demonstrate mode locking of a thulium–bismuth codoped fiber laser (TBFL) operating at 1901.6 nm, using a graphene-based saturable absorber (SA). In this work, a single layer graphene is mechanically exfoliated using the scotch tape method and directly transferred onto the surface of a fiber pigta...