Bismuth‐doped fiber Q‐switcher in erbium‐doped fiber laser cavity. Issue 8 (21st April 2021)

• Record Type: Journal Article
• Authors: Zhang, Pei; Dimyati, Kaharuddin; Najm, Mustafa Mohammed; Nizamani, Bilal; Paul, Mukul Chandran; Das, Shyamal; Dhar, Anirban; Pal, Mrinmay; Yasin, Moh; Harun, Sulaiman Wadi
• Is Part Of: Microwave and optical technology letters. Volume 63:Issue 8(2021)
• Page Start: 2214
• Page End: 2218
• Publication Date: 2021-04-21
• Subjects: bismuth‐doped fiber -- fiber saturable absorber -- Q‐switching; Microwaves -- Periodicals; Optics -- Periodicals; 621
• DOI: 10.1002/mop.32870
• Languages: English
• ISSNs: 0895-2477

Abstract

Abstract: We propose a simple design of all‐fiber Q‐switched erbium‐doped fiber laser (EDFL). The laser is passively Q‐switched by splicing bismuth‐doped fiber into a ring cavity. The design has been experimentally demonstrated at the emission wavelength of 1560.48 nm. A single‐mode Q‐switched pulse with pulse duration of 1.18 μs and pulse energy of 15.6 nJ was obtained with 980 nm pump power of 178 mW. Stable and typical Q‐switched pulses were achieved at the repetition rate changing from 63.3 to 94.6 kHz. To the best of our knowledge, it is the first time to demonstrate bismuth‐doped fiber as an effective saturable absorber for erbium‐doped fiber laser.