Robust 1.7-μm, all-polarization-maintaining femtosecond fiber laser source based on standard telecom fibers. (19th June 2019)

• Record Type: Journal Article
• Authors: He, Xin; Lin, Qimeng; Guo, Hongyu; Sun, Jiang; Bai, Jintao; Hou, Lei; Wang, Kaige
• Is Part Of: Applied physics express. Volume 12:Number 7(2019)
• Publication Date: 2019-06-19
• Subjects: Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.7567/1882-0786/ab266f
• Languages: English
• ISSNs: 1882-0778

Abstract

Abstract: We demonstrate a compact 1.7- μ m all-polarization-maintaining ultrafast fiber laser source, which employs soliton self-frequency shift in an optical fiber as the dominant spectral-shifting mechanism. The laser generates stable pulses with 384 fs pulse width and 102 MHz repetition rate centered at 1.7 μ m with 7 nm spectral bandwidth. The average power is about 35 mW with a high conversion efficiency of 66%. The measured root mean square output power stability over 10 h is as low as 0.22%. Both experimental and simulation results demonstrate that this laser has a potential to improving multiphoton imaging depth.