Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers

被引:50
作者
Akimov, DA
Ivanov, AA
Alfimov, MV
Bagayev, SN
Birks, TA
Wadsworth, WJ
Russell, PS
Fedotov, AB
Pivtsov, VS
Podshivalov, AA
Zheltikov, AM [1 ]
机构
[1] Moscow MV Lomonosov State Univ, Ctr Int Laser, Fac Phys, Moscow 119899, Russia
[2] Russian Acad Sci, Ctr Photochem, Moscow 117421, Russia
[3] Russian Acad Sci, Siberian Branch, Inst Laser Phys, Novosibirsk 630090, Russia
[4] Univ Bath, Dept Phys, Bath BA2 7AY, Avon, England
来源
APPLIED PHYSICS B-LASERS AND OPTICS | 2002年 / 74卷 / 4-5期
关键词
D O I
10.1007/s003400200811
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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-mum Cr:forsterite laser radiation coupled into a tapered fiber having a taper waist diameter of about 2 mum 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.
引用
收藏
页码:307 / 311
页数:5
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