Open AccessHigh peak power ultrafast Yb:CaF_2 oscillator pumped by a single-mode fiber-coupled laser diode
Author(s) -
Maciej Kowalczyk,
Arkady Major,
Jarosław Sotor
Publication year - 2017
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.026289
Subject(s) - optics , laser , materials science , output coupler , ytterbium , fiber laser , ultrashort pulse , diode , mode locking , injection seeder , power (physics) , optoelectronics , laser power scaling , physics , quantum mechanics
We demonstrate a high peak power mode-locked Yb:CaF 2 oscillator pumped by a single-mode laser diode. The laser operated in hybrid Kerr-lens and SESAM mode-locked regime. Its performance was optimized by varying the output coupler ratio. Pulses as short as 65 fs were generated with 0.4% transmission. Employing 5% output coupler enabled generation of 77 fs pulses with 46 kW of peak power (262 mW of average output power). We believe that such high peak powers can open a way to practical applications of single-mode diode-pumped ultrafast ytterbium lasers.