0000000000007589

AUTHOR

Charles-henri Hage

showing 5 related works from this author

Source optique fibrée pour la microscopie CARS

2012

[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics][PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics][ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics]
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All-optical fiber-based devices for ultrafast amplitude jitter magnification

2012

International audience; We propose two fiber-based architectures that enable the all-optical magnification of ultrafast amplitude fluctuations of picosecond or femtosecond pulse trains. An increase of the fluctuations by more than one order of magnitude is experimentally achieved.

[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics][PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]Materials science[ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics]business.industryMagnificationPhysics::Optics02 engineering and technology01 natural sciences010309 optics020210 optoelectronics & photonicsAmplitudeOpticsFiber Bragg gratingPicosecond0103 physical sciences0202 electrical engineering electronic engineering information engineeringPhysics::Atomic and Molecular ClustersPhysics::Chemical PhysicsbusinessUltrashort pulseOrder of magnitudeComputingMilieux_MISCELLANEOUSPhotonic-crystal fiberJitter
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Optimisation de la densité spectrale d'énergie obtenue par auto-décalage fréquentiel Raman dans une fibre microstructurée

2010

National audience

[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics][PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics][ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics]ComputingMilieux_MISCELLANEOUS
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Direct temporal reconstruction of picosecond pulse by cross-correlation in semiconductor device

2012

Cross-correlation measurements using the two-photon absorption process in a semiconductor is experimentally demonstrated for two pulses of different wavelengths (shifted by ~200 nm) and durations (20 times ratio). These measurements were found to be highly repeatable and fully suitable for the determination of the temporal intensity profile of picosecond (ps) pulses.

Materials scienceCross-correlationbusiness.industrySemiconductor deviceIntensity (physics)WavelengthOpticsSemiconductorPicosecond pulsePicosecondOptoelectronicsElectrical and Electronic EngineeringbusinessAbsorption (electromagnetic radiation)Electronics Letters
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Dispositif fibré pour la détection de faibles fluctuations d'intensité d'impulsions ultracourtes

2011

National audience; Nous présentons ici un dispositif fibré permettant d'exacerber les fluctuations d'intensité d'un train d'impulsions ultracourtes afin de faciliter leur détection. En exploitant l'effet Raman qui induit le décalage fréquentiel de ces impulsions suivi d'un filtrage passe-haut, nous montrons ainsi qu'il est possible de multiplier d'un facteur 13 les fluctuations du train initial.

[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics][PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics][ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics]
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