title: 6-GHz, Kerr-lens mode-locked Yb:Lu2O3 ceramic laser for comb-resolved broadband spectroscopy.
abstract: A laser diode (LD)-pumped, 6-GHz repetition rate, ytterbium (Yb)-doped Lu2O3 ceramic Kerr-lens mode-locked laser is described. A bow-tie ring cavity enabled the generation of femtosecond pulses centered at a wavelength of 1076 nm with an average power of 10 mW. The pulse duration after an amplifier was 161 fs whereas the transform-limited pulse duration directly from the oscillator was 148 fs. The repetition frequency was sufficiently high for each longitudinal mode to be spectrally resolved by a commercially available optical spectrum analyzer. The developed laser was successfully applied to the absorption spectroscopy of metastable helium4 and demonstrated the suitability of the system as a source for comb-resolved broadband spectroscopy.
authors.forename: Mamoru
authors.initials: M
authors.lastname: Endo
authors.forename: Akira
authors.initials: A
authors.lastname: Ozawa
authors.forename: Yohei
authors.initials: Y
authors.lastname: Kobayashi
mesh_terms: D002516:Ceramics; D053844:Lasers, Solid-State; D008187:Lutetium / Q000737:chemistry*; D055100:Optical Fibers; D010087:Oxides / Q000737:chemistry*; D013057:Spectrum Analysis; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D010087:Oxides; D008187:Lutetium; D015018:Ytterbium