6533b85efe1ef96bd12c0957
RESEARCH PRODUCT
Impact of initial pulse shape on the nonlinear spectral compression in optical fibre
Esben Ravn AndresenSonia BoscoloChristophe FinotHervé RigneaultFrédéric Chaussardsubject
Femtosecond pulse shapingOptical fiberMaterials scienceGaussianNonlinear spectral compression02 engineering and technologynonlinear fiber optics01 natural scienceslaw.invention010309 opticssymbols.namesake020210 optoelectronics & photonicsOpticslaw0103 physical sciences0202 electrical engineering electronic engineering information engineeringElectrical and Electronic Engineering[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics][ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics]business.industryPulse shapingAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsPulse (physics)Nonlinear systemsymbolsbusinessUltrashort pulseBandwidth-limited pulsepulse shapingdescription
International audience; We theoretically study the effects of the temporal intensity profile of the initial pulse on the nonlinear spectral compression process arising from nonlinear propagation in an optical fibre. Various linearly chirped input pulse profiles are considered, and their dynamics is explained with the aid of time-frequency representations. While initially parabolic-shaped pulses show enhanced spectral compression compared to Gaussian pulses, no significant spectral narrowing occurs when initially super-Gaussian pulses are used. Triangular pulses lead to a spectral interference phenomenon similar to the Fresnel bi-prism experiment.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-02-01 |