Extreme polarization-dependent supercontinuum generation in an uncladded silicon nitride waveguide

Kuvaus

We experimentally demonstrate the generation of a short-wave infrared supercontinuum in an uncladded silicon nitride (Si3N4) waveguide with extreme polarization sensitivity at the pumping wavelength of 2.1 μm. The air-clad waveguide is specifically designed to yield anomalous dispersion regime for transverse electric (TE) mode excitation and all-normal-dispersion (ANDi) at near-infrared wavelengths for the transverse magnetic (TM) mode. Dispersion-engineering of the polarization modes allows for switching via simple adjustment of the input polarization state from an octave-spanning soliton fission-driven supercontinuum with fine spectral structure to a flat and smooth ANDi supercontinuum dominated by self-phase modulation mechanism (SPM). Such polarization sensitive supercontinuum source offers versatile applications from broadband on-chip sensing to pulse compression and few-cycle pulse generation. Our experimental results are in very good agreement with numerical simulations.
Näytä enemmän

Julkaisuvuosi

2021

Aineiston tyyppi

Tekijät

Caroline Amiot - Tekijä

GOERY GENTY - Muu tekijä

Tuntematon organisaatio

CAMILLE-SOPHIE BRES - Muu tekijä

EIRINI TAGKOUDI - Muu tekijä

figshare - Julkaisija

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Muut tiedot

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Fysiikka

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englanti

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Avoin

Lisenssi

Creative Commons Nimeä 4.0 Kansainvälinen (CC BY 4.0)

Avainsanat

FOS: Physical sciences, 20503 Nonlinear Optics and Spectroscopy

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