Generation of 100 nJ pulse, 1 W average power at $2~\unicode[STIX]{x03BC}\text{m}$ from an intermode beating mode-locked all-fiber laser. (2019)

• Record Type: Journal Article
• Authors: Zhang, Jiaji; Wu, Duanduan; Zhao, Ruwei; Wang, Rongping; Dai, Shixun
• Is Part Of: High power laser science and engineering. Volume 7(2019)
• Publication Date: 2019
• Subjects: average output power, -- intermode beating mode-locking, -- Tm3+ -doped double clad fiber laser, -- pulse energy; High power lasers -- Periodicals; 621.366
• DOI: 10.1017/hpl.2019.50
• Languages: English
• ISSNs: 2095-4719

Abstract

Abstract : We report on the investigation of intermode beating mode-locked (IBML) pulse generation in a simple all-fiber Tm $^{3+}$ -doped double clad fiber laser (TDFL). This IBML TDFL is implemented by matching longitudinal-mode frequency between 793 nm laser and TDFL without extra mode locker. The central wavelength of ${\sim}1983~\text{nm}$, the fundamental pulse frequency of ${\sim}9.6~\text{MHz}$ and the signal-to-noise ratio (SNR) of ${>}50~\text{dB}$ are achieved in this IBML TDFL. With laser cavity optimization, the IBML TDFL can finally generate an average output power of 1.03 W with corresponding pulse energy of ${\sim}107~\text{nJ}$ . These results can provide an easily accessible way to develop compact large-energy, high-power TDFLs.