Abstract
Dissipative soliton resonance (DSR) fiber mode-locked lasers (MLL) are attracting a steadily growing interest over the recent years, due to their ability to generate relatively long (ns-scale), strongly chirped and large energy pulses directly inside a main oscillator. Thulium-doped fiber (TDF) DSR MLLs, optionally enhanced with amplification and compression stages, are in high demand in various application areas in 2-µm spectral region, like surgery, LIDAR and remote sensing, microscopy, etc. Figure-8 (F8) TDF laser, emitting 20 nJ pulses from net-normal-dispersion cavity, was demonstrated [1]. More advanced total-anomalous-dispersion F8 cavity, involving double-clad (DC) TDF and two-stage post-amplification, was used to obtain a pulse energy of 66 µJ [2]. The nonlinear amplifiying loop mirror (NALM) was exploited in both experiments as a mode-locking element. Being mainly fiber-based, above-mentioned configurations include some inherently free-space components, such as isolators, which have lower damage threshold, comparing to all-fiber elements. In this paper, we demonstrate the first truly all-fiber figure-9 (F9) DSR TDF laser that emits nanosecond pulses with energies up to 400 nJ, which is to the best of our knowledge a record value of the energies, extracted directly from the DSR oscillator at 2 µm.
© 2017 IEEE
PDF ArticleMore Like This
M. Durán-Sánchez, B. Posada-Ramírez, B. Ibarra-Escamilla, H. Santiago-Hernández, R. I. Alvarez-Tamayo, M. Bello-Jiménez, and E. A. Kuzin
LTu5F.4 Laser Science (LS) 2018
Junqing Zhao, Luming Zhao, Lei Li, and Ying Geng
s1002 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2017
Rezki Becheker, Mohamed Touil, Kilian Le Corre, Thierry Robin, Benoit Cadier, Mathieu Laroche, Thomas Godin, and Ammar Hideur
JTh3A.38 Advanced Solid State Lasers (ASSL) 2019