Group-velocity-matched ultrashort-pulse synthesis in a hollow fibre filled with a Raman-active gas

Journal Article · Sat Jun 30 04:00:00 EDT 2001 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2001V031N06ABEH001984· OSTI ID:21450413

Zheltikov, Aleksei M; Naumov, A N ^[1]

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1. Department of Physics, M.V. Lomonosov Moscow State University, Moscow (Russian Federation)

Group-velocity mismatch between the pump and probe pulses is shown to limit the minimum duration of ultra-short pulses synthesised through the generation of multiple Stokes and anti-Stokes sidebands in a Raman-active medium preliminary excited by a short laser pulse. The group delay of pulses involved in short-pulse synthesis in a Raman-active gas can be reduced by using a hollow fibre with a properly chosen inner diameter, gas pressure, and waveguide modes. The number of Stokes and anti-Stokes sidebands in the nonlinear response of a Raman-active gas can be considerably increased under these conditions, opening the way to substantially reduce the duration of light pulses synthesised using this method. (femtosecond technologies)

• OSTI ID: 21450413
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 6 Vol. 31; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTROMAGNETIC RADIATION
FIBERS
LASERS
NONLINEAR PROBLEMS
OPTICAL FIBERS
PROBES
PULSES
RADIATIONS
RAMAN EFFECT
STOKES PARAMETERS
VELOCITY
VISIBLE RADIATION
WAVEGUIDES