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7 Result(s)

within W. J. Wadsworth Remove this filter English Remove this filter Optics, Lasers, Photonics, Optical Devices Remove this filter

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  1. No Access

    Article

    Hollow-core photonic crystal fibres for delivery and compression of ultrashort optical pulses

    We describe the use of tapered hollow-core photonic crystal fibres for delivery and compression of ultrashort optical pulses. We demonstrate delivery of transform-limited pulses with less than 100 fs pulse len...

    J. C. Knight, F. Gérôme, W. J. Wadsworth in Optical and Quantum Electronics (2007)

  2. No Access

    Chapter and Conference Paper

    Spectral-temporal soliton dynamics analysis near second zero-dispersion point in photonic crystal fibers

    The propagation dynamics of an ultrashort optical pulse near the second zero-dispersion point of a small-core high-delta photonic crystal fiber is investigated using cross-correlation frequency-resolved optica...

    Anatoly Efimov, A. J. Taylor, F. G. omenetto, N. Joly… in Ultrafast Phenomena XIV (2005)

  3. No Access

    Article

    Maximization of supercontinua in photonic crystal fibers by using double pulses and polarization effects

    We show with sub-20 fs pulses both experimentally and theoretically two techniques to control the width and polarization of spectral supercontinua generated in photonic crystal fibers. The first exploits doubl...

    V.L. Kalashnikov, P. Dombi, T. Fuji, W.J. Wadsworth, J.C. Knight… in Applied Physics B (2003)

  4. No Access

    Article

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

    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...

    D.A. Akimov, A.A. Ivanov, A.N. Naumov, O.A. Kolevatova, M.V. Alfimov… in Applied Physics B (2003)

  5. No Access

    Article

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

    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 obs...

    D.A. Akimov, A.A. Ivanov, M.V. Alfimov, S.N. Bagayev, T.A. Birks… in Applied Physics B (2002)

  6. No Access

    Article

    Absolute frequency measurement of iodine lines with a femtosecond optical synthesizer

    We have used a single laser femtosecond optical frequency synthesizer together with a widely tunable Nd:YAG laser to measure the absolute frequency of several absorption lines in molecular iodine around 532 nm...

    R. Holzwarth, A.Yu. Nevsky, M. Zimmermann, Th. Udem, T.W. Hänsch… in Applied Physics B (2001)

  7. No Access

    Article

    Efficient distributed feedback solid state dye laser with a dynamic grating

    We present the first operation of a distributed feedback solid state dye laser with a dynamic, pump-induced grating. Broadly tunable, narrow band operation in the region of 616 nm (604–649 nm) has been demonst...

    W.J. Wadsworth, I.T. McKinnie, A.D. Woolhouse, T.G. Haskell in Applied Physics B (1999)