Title :
Supercontinuum Generation With GHz Repetition Rate Femtosecond-Pulse Fiber-Amplified VECSELs
Author :
Head, C. Robin ; Ho-Yin Chan ; Feehan, James S. ; Shepherd, David P. ; Alam, Shahinur ; Tropper, A.C. ; Price, Jonathan H. V. ; Wilcox, K.G.
Author_Institution :
Sch. of Phys. & Astron., Univ. of Southampton, Southampton, UK
Abstract :
We report on supercontinuum generation using a mode-locked VECSEL emitting 400-fs pulses at a 3-GHz repetition rate, amplified with a cascaded ytterbium-doped fiber amplifier system up to 40 W of average power. The pulses are then recompressed to their original duration via a high throughput transmission grating compressor, and used to generate supercontinuum in two samples of photonic crystal fiber (PCF): an all-normal dispersion PCF, and a PCF with a zero dispersion wavelength of 1040 nm, creating 20 dB spectral bandwidths of 200 nm and 280 nm, respectively.
Keywords :
amplification; diffraction gratings; holey fibres; laser cavity resonators; laser mode locking; optical fibre amplifiers; optical fibre dispersion; optical pulse compression; photonic crystals; supercontinuum generation; surface emitting lasers; ytterbium; GHz repetition rate femtosecond-pulse fiber-amplified VECSEL; all-normal dispersion PCF; cascaded ytterbium-doped fiber amplifier system; frequency 3 GHz; high-throughput transmission grating compressor; mode-locked VECSEL; photonic crystal fiber; pulse emission; pulse recompression; supercontinuum generation; time 400 fs; wavelength 1040 nm; wavelength 200 nm; wavelength 280 nm; Dispersion; Gratings; Power generation; Supercontinuum generation; Surface emitting lasers; Fiber amplifiers; GHz repetition rate; supercontinuum generation; vertical-external-cavity surface-emitting laser (VECSEL);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2241420
