|
|||||
|
|
Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers |
|
| Authors: | D.A. Akimov A.A. Ivanov M.V. Alfimov S.N. Bagayev T.A. Birks W.J. Wadsworth P.St.J. Russell A.B. Fedotov V.S. Pivtsov A.A. Podshivalov A.M. Zheltikov |
| Affiliation: | (1) Physics Faculty, International Laser Center, M.V. Lomonosov Moscow State University, 119899 Moscow, Russia, RU;(2) Center of Photochemistry, Russian Academy of Sciences, ul. Novatorov 7a, Moscow 117421, Russia, RU;(3) Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, pr. Lavrent’eva 13/3, Novosibirsk 630090, Russia, RU;(4) Department of Physics, University of Bath, Bath BA2 7AY, UK, GB |
| Abstract: | Spectral broadening of femtosecond Cr:forsterite laser pulses is enhanced due to the use of tapered fibers. Supercontinuum generation with unamplified subnanojoule femtosecond Cr:forsterite laser pulses is observed for the first time. With 40-fs 0.6-nJ pulses of 1.25-μm Cr:forsterite laser radiation coupled into a tapered fiber having a taper waist diameter of about 2 μm and a taper waist length of 90 mm, we observed the spectra spanning more than two octaves at the output of the fiber in the regime of anomalous group-velocity dispersion. This result opens the way for the creation of compact femtosecond Cr:forsterite laser plus tapered fiber systems for optical metrology and biomedical applications. Received: 23 October 2001 / Accepted: 16 January 2002 / Published online: 14 March 2002 |
| Keywords: | PACS: 42.65.Wi 42.81.Qb |
| 本文献已被 SpringerLink 等数据库收录！ | |