Open AccessCompact portable 20 MHz solid-state femtosecond whitelight-laser
Author(s) -
Felix Hoos,
Sebastian Pricking,
Harald Gießen
Publication year - 2006
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.14.010913
Subject(s) - supercontinuum , femtosecond , optics , laser , materials science , fiber laser , optoelectronics , resonator , photonic crystal fiber , physics , wavelength
We demonstrate a new and extremely compact design for a directly diode-pumped Yb:glass laser oscillator that is used as femtosecond light source for supercontinuum generation. The laser is capable of generating femtosecond pulses of 150 fs and pulse energies up to 39 nJ at a repetition rate of 20 MHz. By using a Herriott-type multi-pass cell, 70 % of the total resonator length are folded to only 30 cm. With off-the-shelf components, our setup has a footprint of 62x23 cm(2). Using smaller mechanical components, the size can easily be further decreased. In combination with a tapered fiber, the laser forms a cheap, stable, and compact femtosecond supercontinuum source with up to 400 mW of average whitelight power.