1-3hit |
Dirk H. SUTTER Isabella D. JUNG Nicolai MATUSCHEK Francois MORIER-GENOUD Franz X. KARTNER Ursula KELLER Volker SCHEUER Markus TILSCH Theo TSCHUDI
This paper summarizes our recent efforts in modelocking Ti:sapphire lasers with semiconductor saturable absorber mirrors (SESAMs). We present the shortest optical pulses ever generated directly from a laser. The modelocking build-up time (T BU) of 60 µs is, to our knowledge, the shortest reported for a passively modelocked KLM laser to date.
Akihiro MORIMOTO Tadao OKIMOTO Akira SOGA Tetsuro KOBAYASHI
FM laser operation of a Ti:sapphire laser is studied experimentally for the first time with an internal phase modulator. We obtained extremely wide FM sidebands of 8 THz width whose phase modulation index was 25,000 rad at a modulation frequency of 160 MHz.
Kenji TORIZUKA Hideyuki TAKADA Kenzo MIYAZAKI
Self-modelocking of Ti:sapphire laser has obtained with less than 2 W of argon-ion laser pumping. Two independent lasers with 36 fsec and 63 fsec in pulse duration were operated by a 6 W pump laser. In the low-threshold lasers, not only an ordinary mode-locking but also a double-pulse mode-locking, where two pulses circulating in the cavity, was stable.