Generation of a spectrally asymmetric third harmonic with unamplified 30-fs Cr:forsterite laser pulses in a tapered fiber

被引：47

作者：

Akimov, DA

Ivanov, AA

Naumov, AN

Kolevatova, OA

Alfimov, MV

Birks, TA

Wadsworth, WJ

Russell, PSJ

Podshivalov, AA

Zheltikov, AM

机构：

[1] Russian Acad Sci, Ctr Phytochem, Moscow 117421, Russia

[2] Moscow MV Lomonosov State Univ, Ctr Int Laser, Dept Phys, Moscow 119899, Russia

[3] Univ Bath, Dept Phys, Bath BA2 7AY, Avon, England

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2003年 / 76卷 / 05期

关键词：

D O I：

10.1007/s00340-002-1080-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Unamplified subnanojoule 30-fs pulses of Cr:forsterite laser radiation are shown to generate the third-harmonic signal in a tapered fiber. Analysis of the dispersion properties of a tapered fiber indicates the possibility of phase matching third-harmonic generation in higher-order waveguide modes. When the pump and third-harmonic pulses are group-velocity-mismatched, optimal phase matching is achieved for frequency components spectrally offset from the central frequency of the pump pulse, which gives rise to an asymmetry in the spectrum of the third harmonic.

引用

页码：515 / 519

页数：5

共 21 条

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