2004
DOI: 10.1364/opex.12.000299
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Supercontinuum and four-wave mixing with Q-switched pulses in endlessly single-mode photonic crystal fibres

Abstract: Photonic crystal fibres exhibiting endlessly single-mode operation and dispersion zero in the range 1040 to 1100 nm are demonstrated. A sub-ns pump source at 1064 nm generates a parametric output at 732 nm with an efficiency of 35%, or parametric gain of 55 dB at 1315 nm. A broad, flat supercontinuum extending from 500 nm to beyond 1750 nm is also demonstrated using the same pump source.

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Cited by 406 publications
(204 citation statements)
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“…FWM has been studied in single-mode fibers, multimode fibers, and more recently, photonic crystal fibers (PCFs). [1][2][3][4][5][6][7][8] In most experiments, the red-shifted Stokes wave and the blue-shifted antiStokes wave are generated within the same mode as the pump light. In these cases, the phase-matching conditions require the pump to be in the vicinity of the zero dispersion wavelength (ZDW) of the propagating mode.…”
mentioning
confidence: 99%
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“…FWM has been studied in single-mode fibers, multimode fibers, and more recently, photonic crystal fibers (PCFs). [1][2][3][4][5][6][7][8] In most experiments, the red-shifted Stokes wave and the blue-shifted antiStokes wave are generated within the same mode as the pump light. In these cases, the phase-matching conditions require the pump to be in the vicinity of the zero dispersion wavelength (ZDW) of the propagating mode.…”
mentioning
confidence: 99%
“…In these cases, the phase-matching conditions require the pump to be in the vicinity of the zero dispersion wavelength (ZDW) of the propagating mode. 8,9 However, launching high power pump light near the ZDW can easily generate a supercontinuum (SC), which limits the conversion efficiency from the pump to the narrow-band Stokes and anti-Stokes waves. 10 High-efficiency FWM generation at 673 nm and 2539 nm has been achieved in an endlessly single-mode large-mode-area (LMA) PCF without having the pump light close to the ZDW.…”
mentioning
confidence: 99%
“…At further propagation in PCF the phase-matched four wave mixing process starts to play crucial role in excitation of new spectral components and in the spectral broadening. The higher order nonlinear processes, such as stimulated Raman scattering or third order dispersion, affect the formation of supercontinuum too [6,7]. While only second harmonic was used for pumping, stimulated Raman scattering was found to be the dominating nonlinear process in this case due to the strong normal dispersion of the fibre at 532 nm.…”
Section: Resultsmentioning
confidence: 91%
“…Most of the earlier theoretical and experimental investigations on SC generation focused on fiber-based geometries, particularly on photonic crystal fibers (PCFs) made with silica glass, since dispersion of PCFs could be easily engineered owing to a strong modal confinement associated with the presence of air holes inside PCF's cladding [5][6][7][8][9][10]. Although strong mode confinement can be achieved in silica PCF, the relatively weak nonlinearity of silica necessitates high peak powers for SC generation.…”
Section: Introductionmentioning
confidence: 99%