Efficient generation of near-i.r. stimulated light scattering in optical fibres pumped in low-dispersion region at 1.3 μm

Washio, Kunihiko; Inoue, Ken; Tanigawa, T.

doi:10.1049/el:19800237

Cited by 42 publications

(4 citation statements)

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“…If two pulses at WL and U>R are present the nondegenerate fourphoton interaction (II) w L + WR -* w 3 + w 4 is possible as well. If no signal at w 3 and u/4 is entered to the fibre, one speaks of stimulated four-photon mixing [4,5,13,[40][41][42][43], stimulated parametric four-photon interaction [44,45], stimulated four-wave parametric emission [46], or parametric four-photon generation (start from quantum noise and black-body radiation [37]). If a weak signal at either w 3 or w 4 is already present, one speaks of four-photon parametric amplification [4,5,10,47].…”

Section: Parametric Four-photon Interactionmentioning

confidence: 99%

Spectral broadening of picosecond laser pulses in optical fibres

Weidner

Penzkofer

1993

Opt Quant Electron

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Picosecond light pulses of a passively mode-locked ruby laser (pulse duration At L « 35 ps) are spectrally broadened in optical fibres of core diameters from 4//m to 600j/m. Combining the effects of self-phase modulation, stimulated Raman scattering, and parametric four-photon interaction in an 8-/im core fibre of 4 m length with the effect of selective spectral attenuation in a ruby rod resulted in rather smooth spectra extending from 685 nm to 830 nm (spectral width « 2300cm" 1 ).

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Section: Parametric Four-photon Interactionmentioning

confidence: 99%

Spectral broadening of picosecond laser pulses in optical fibres

Weidner

Penzkofer

1993

Opt Quant Electron

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“…zero dispersion wavelength (ZDW) would generate solitons. To exhibit a smooth spectral profile of the generated supercontinua, Washio et al, demonstrated the significance of pumping in the anomalous dispersion region using Q-switched and mode-locked Nd:YAG solid state laser at 1.34 µm wavelength [6]. By increasing the fiber length, the required pump power can be minimized with efficient FWM in the region of ZDW.…”

Section: Introductionmentioning

confidence: 99%

Supercontinuum Generation in Highly Nonlinear PQF with Two Zero Dispersion Wavelength

Rajalingam¹,

Alex²

2019

ujeee

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An optical input pulse with a duration of nanosecond to femtosecond propagates through a dispersive nonlinear medium, it is subject to an extreme spectral broadening termed as white light supercontinuum (SC). In PCF, dispersion characteristics can be modified by the waveguide geometric parameters and thereby the nonlinear dynamics can be altered. In this article, the fiber parameters like core diameter, doping percentage, and pitch are varied and analyzed to achieve a conclusive zero-dispersion wavelength (ZDW) and a high nonlinearity. The numerical study presents different designs of solid-core photonic quasi-crystal fiber (PQF) and selection of highly nonlinear fiber with an effective area of 1.14 µm 2 and nonlinearity of 196 W-1-km-1 at 780 nm exhibiting two-zero dispersion wavelength for supercontinuum generation in different regimes. The results exhibit a significant pulse broadening effect when the pump pulse (FWHM) was varied from 25 fs to 100 fs. Similarly, the influences of the pulse energy and peak average power on the bandwidth of the generated SC are studied

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“…In 1970, SFPM was produced in glass by Alfano and Shapiro using picosecond pulses [ l l . Later on, SFPM has been successfully demonstrated by a number of investigators in fewmode [2], birefringent [3], and single-mode [4] optical fibers. Most of the earlier experiments using optical fibers have been performed with nanosecond pulses.…”

Section: Introductionmentioning

confidence: 99%

Intensity effects on the stimulated four photon spectra generated by picosecond pulses in optical fibers

Baldeck

Alfano

1987

J. Lightwave Technol.

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The intensity dependence of stimulated four photon mixing (SFPM) spectra generated in 15 m of a 4-mode optical fiber by 25ps pulses has been investigated. Despite the shortness of pulses, the SFPM conversion was highly efficient due to the intrinsic phase matching condition. In addition to usual features of SFPM spectra generated by nanosecond pump pulses, picosecond SFPM spectra were broadened by self phase modulation (SPM) and cross phase modulation (XPM). At the highest pump powers, intensity saturated frequency continua, arising from the combined effects of SFPM, stimulated Raman scattering (SRS), SPM, and XPM were generated all over the visible spectrum.

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Efficient generation of near-i.r. stimulated light scattering in optical fibres pumped in low-dispersion region at 1.3 μm

Cited by 42 publications

References 0 publications

Spectral broadening of picosecond laser pulses in optical fibres

Spectral broadening of picosecond laser pulses in optical fibres

Supercontinuum Generation in Highly Nonlinear PQF with Two Zero Dispersion Wavelength

Intensity effects on the stimulated four photon spectra generated by picosecond pulses in optical fibers

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