Dual-wavelength all-fiber Q-switched fiber laser using bismuth-doped fiber as saturable absorber

• Main Authors: Ghosh, Aruna, Diblawe, Abdulkadir Mukhtar, Samanta, Uttam Kumar, Yasin, Moh, Harun, Sulaiman Wadi, Paul, Mukul Chandra
• Format: Article
• Published: Tianjin University Technology 2024
• Subjects: QC Physics; TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/44714/; https://doi.org/10.1007/s11801-024-3085-6

A passively Q-switched all-fiber laser is demonstrated using a 10-cm-long bismuth-doped fiber (BDF) as a saturable absorber (SA). The dual-wavelength operation was obtained due to the nonlinear effect inside the fabricated BDF, which has a high germanium content. Stable Q-switched pulses were obtain...