Title :
Ultrabroadband regenerative amplifier with a mirror-less cavity
Author :
Nabekawa, Y. ; Shimizu, Y. ; Midorikawa, K.
Author_Institution :
RIKEN, Inst. of Phys. & Chem. Res., Saitama, Japan
Abstract :
Summary form only given. For further shortening of pulse duration, we have to overcome the limit of spectral bandwidth of cavity mirrors in the regenerative amplifier. We have developed a regenerative amplifier without a mirror to eliminate such limitations of the dielectric coating. Total reflections, which have almost no limit in the spectral range of a Ti:sapphire laser, in four Pellin-Broca prisms are the substitutes for the mirrors consisting of a ring cavity. A large amount of dispersion in the prisms is compensated with other Brewster prism pairs inserted in the cavity. We obtained a 16 fs pulse with an energy of 5 mJ as a result of further amplification in the two-pass amplifier and compression in the grating pair.
Keywords :
optical prisms; optical pulse compression; ring lasers; sapphire; solid lasers; titanium; 16 fs; 5 mJ; Al/sub 2/O/sub 3/:Ti; Brewster prism pairs; Pellin-Broca prisms; Ti:sapphire laser; compression; dielectric coating; dispersion; grating pair; mirror-less cavity; pulse duration; ring cavity; spectral bandwidth; spectral range; total reflections; two-pass amplifier; ultrabroadband regenerative amplifier; Mirrors; Optical amplifiers; Optical control; Optical pulse shaping; Optical pulses; Optimized production technology; Pulse amplifiers; Pulse compression methods; Pulse measurements; Shape measurement;
Conference_Titel :
Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-706-7
DOI :
10.1109/CLEO.2002.1034114
