Palm-top-size, 1.5 kW peak-power, and femtosecond (160 fs) diode-pumped mode-locked Yb+3:KY(WO4)2 solid-state laser with a semiconductor saturable absorber mirror.
We report a palm-top-size femtosecond diode-pumped mode-locked Yb(+3):KY(WO(4))(2) solid-state laser with a semiconductor saturable absorber mirror utilizing soliton mode locking for shortening the cavity to 50 mm. An average output power of 680 mW and a pulse width of 162 fs were obtained at 1045 nm with a repetition rate of 2.8 GHz, which led to a peak power of 1.5 kW. Average power fluctuations of a modularized laser source were found to be +/-10% for the free-running 3000 h operation and +/-1% for the power-controlled 2000 h operation.
Yamazoe
Shogo
S
Frontier Core-Technology Laboratories, FUJIFILM Corporation, 577 Ushijima, Kaisei-Machi, Ashigarakami-Gun, Kanagawa 258-8577, Japan. shougo_yamazoe@fujifilm.co.jp
Katou
Masaki
M
Adachi
Takashi
T
Kasamatsu
Tadashi
T
D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D054023:Lasers, Semiconductor; D053844:Lasers, Solid-State; D007909:Lenses; D008904:Miniaturization; D012031:Refractometry / Q000295:instrumentation*