6533b831fe1ef96bd1298cc9
RESEARCH PRODUCT
Enhanced supercontinuum generation in tapered tellurite suspended core fiber
Frédéric DésévédavyClément StrutynskiDinghuan DengFoued AmraniYasutake OhishiBertrand KiblerJean-charles JulesGrégory GadretJ. Picot-clémenteKenshiro NagasakaTonglei ChengFrédéric Smektalasubject
Dispersion engineeringMaterials scienceInfraredbusiness.industryBandwidth (signal processing)Nonlinear opticsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsSupercontinuumOpticsOptical parametric oscillatorElectrical and Electronic EngineeringPhysical and Theoretical ChemistrybusinessHigh absorptionDoppler broadeningdescription
Abstract We demonstrate 400-THz (0.6–3.3 µm) bandwidth infrared supercontinuum generation in a 10 cm-long tapered tellurite suspended core fiber pumped by nJ-level 200-fs pulses from an optical parametric oscillator. The increased nonlinearity and dispersion engineering extended by the moderate reduction of the fiber core size are exploited for supercontinuum optimization on both frequency edges (i.e., 155-THz overall gain), while keeping efficient power coupling into the untapered fiber input. The remaining limitation of supercontinuum bandwidth is related to the presence of the high absorption beyond 3 µm whereas spectral broadening is expected to fully cover the glass transmission window (0.5–4.5 µm).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-11-01 | Optics Communications |