Title :
Broadband conversion from red to mid-infrared in a high power femtosecond fiber laser-pumped OPO
Author :
Minglie Hu ; Chengling Gu ; Limeng Zhang ; Jingtao Fan ; Ching-Yue Wang
Author_Institution :
Ultrafast Laser Lab., Tianjin Univ., Tianjin, China
fDate :
June 30 2013-July 4 2013
Abstract :
We report highly efficient generation of wavelength tunable femtosecond pulses from red to mid-infrared based on intracavity second harmonic generation (SHG) and sum frequency generation (SFG) in a MgO:PPLN optical parametric oscillator (OPO), which is synchronously pumped by a Yb-doped large-mode-area photonics crystal fiber (PCF) femtosecond laser. A 2mm β-BaB2O4 is applied for Type I (oo → e) intracavity SHG and SFG, and then femtosecond laser over 610~668nm from SFG and 716~970nm from SHG is obtained with high efficiency. In addition, the oscillator simultaneously generates signal and idler femtosecond pulse over 1450nm ~2200nm and 2250nm ~4000nm respectively.
Keywords :
barium compounds; fibre lasers; holey fibres; laser cavity resonators; laser modes; laser tuning; lithium compounds; magnesium compounds; optical harmonic generation; optical parametric oscillators; optical pulse generation; optical pumping; photonic crystals; ytterbium; BaB2O4; LiNbO3:MgO; SFG; Yb-doped large-mode-area photonic crystal fiber femtosecond laser; high power femtosecond fiber laser-pumped OPO; idler femtosecond pulse generation; intracavity second harmonic generation; optical parametric oscillator; red-to-mid-infrared broadband conversion; signal femtosecond pulse generation; size 2 mm; sum frequency generation; type I intracavity SHG; wavelength tunable femtosecond pulse generation; Crystals; Fiber lasers; Laser beams; Laser excitation; Optimized production technology; Tuning; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on
Conference_Location :
Kyoto
DOI :
10.1109/CLEOPR.2013.6600175
