Short pulse nonlinear frequency conversion without group-velocity-mismatch broadening

Radzewicz, Czesław; Band, Yehuda B.; Pearson, Gary Whiton; Krasiński, Jerzy S.

doi:10.1016/0030-4018(95)00103-f

Cited by 29 publications

(14 citation statements)

References 20 publications

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“…103 Alternatively, the same effect can be achieved using the angular dispersion of the birefringent crystal to match the two velocities. For example, the method of Radzewicz et al 104 sets two input waves at different angles. The projection of the two wave vectors onto a vector that bisects them is adjusted by changing the angle between them.…”

Section: B Phase-matched Processesmentioning

confidence: 99%

The role of dispersion in ultrafast optics

Walmsley

Waxer

Dorrer

2001

Review of Scientific Instruments

183

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Adaptive all-order dispersion compensation of ultrafast laser pulses using dynamic spectral holography In this article, we review the phenomenon of dispersion, paying particular attention to its impact in the optics of ultrashort pulses, as well as its measurement and management. At present, lasers generating coherent bandwidths of several hundred nanometers have been demonstrated and correspondingly short pulses of 10 fs or so are quite usual. The limits to the breadth of optical spectra and brevity of pulse durations that may be achieved are often set by the dispersive properties of the linear optical elements of which the source is constructed. Progress in ultrafast optics to date has therefore relied extensively on the development of ways to characterize and manipulate dispersion. The means by which this can be accomplished are significantly different for laser oscillators and laser amplifiers, as well as for nonlinear interactions that are used to extend the range of frequencies at which short optical pulses are available, but in all cases it is this phenomenon that determines the output of current optical sources.

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Section: B Phase-matched Processesmentioning

confidence: 99%

The role of dispersion in ultrafast optics

Walmsley

Waxer

Dorrer

2001

Review of Scientific Instruments

183

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“…The problem of group velocity mismatch could be significantly alleviated if a frequency mixing scheme which ensures both phase matching (PM) and group velocity matching (GVM) could be found. We found that this can be actually achieved in some cases when type I non-collinear sum frequency generation scheme is applied [16,17]. Figure 4 illustrates the basic idea.…”

Section: Propagation Equationmentioning

confidence: 90%

Femtosecond Light Wave Packets

et al. 1998

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We analyze propagation of ultra short light pulses in a transparent, dispersive, nonlinear medium. A general formula for femtosecond wave packet evolution is developed and applied to specific problems. Theoretical and experimental results for wave packet distortion by lenses, wave packet rotation in birefringent media and group velocity matching in sum frequency generation are presented. Numerical results for splitting of femtosecond wave packets in dispersive Kerr media are also presented.

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“…In order to overcome these effects, the simplest solution is to use a thin crystal and to moderate the power density at the expense of the conversion efficiency. The problem of obtaining high conversion efficiency at high energy levels without spectral narrowing has been extensively studied in recent years, and several solutions have been proposed [4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Achromatic phase matching for SHG of femtosecond pulses was described in [4,18], and a similar arrangement was later published in [5].…”

Section: Introductionmentioning

confidence: 99%

Efficient broadband 400 nm noncollinear second-harmonic generation of chirped femtosecond laser pulses in BBO and LBO

et al. 2014

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We report on 400 nm broadband type I frequency doubling in a noncollinear geometry with pulse-front-tilted and chirped femtosecond pulses (λ =800 nm; Fourier transform limited pulse duration, 45 fs). With moderate power densities (2 to 10 GW/cm2) thus avoiding higher-order nonlinear phenomena, the energy conversion efficiency was up to 65%. Second-harmonic pulses of Fourier transform limited pulse duration shorter than the fundamental wave were generated, exhibiting good beam quality and no pulse-front tilt. High energy (20 mJ/pulse) was produced in a 40 mm diameter and 6 mm thick LBO crystal. To the best of our knowledge, this is the first demonstration of this optical configuration with sub-100-fs pulses. Good agreement between experimental results and simulations is obtained.

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Short pulse nonlinear frequency conversion without group-velocity-mismatch broadening

Cited by 29 publications

References 20 publications

The role of dispersion in ultrafast optics

The role of dispersion in ultrafast optics

Femtosecond Light Wave Packets

Efficient broadband 400 nm noncollinear second-harmonic generation of chirped femtosecond laser pulses in BBO and LBO

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