Mid-infrared supercontinuum generation in chalcogenides

Octave-spanning mid-infrared supercontinuum generation in silicon nanowaveguides.

We report, to the best of our knowledge, the first demonstration of octave-spanning supercontinuum generation (SCG) on a silicon chip, spanning from the telecommunications c-band near 1.5 μm to the mid-infrared region beyond 3.6 μm. The SCG presented here is characterized by soliton fission and dispersive radiation across two zero group-velocity dispersion wavelengths. In addition, we numerical...

Mid Infrared Supercontinuum Generation in Photonic Crystal Fiber

Two octaves mid-infrared supercontinuum generation in As₂Se₃ microwires.

We report the first demonstration of mid-infrared supercontinuum generation in As₂Se₃ chalcogenide microwires with the added advantage of using low energy pulses. The generated SC covers two octaves of bandwidth from 1.1 μm to 4.4 μm at -30 dB. This exceeds the broadest reported SC bandwidth in As₂Se₃ microwires by a factor of 3.5. The microwire geometry and pumping conditions are the key param...

Mid-infrared supercontinuum generation in a SiN waveguide pumped at 1.55 micron

We report supercontinuum generation extending to 3.6 micron in silicon-nitride waveguides pumped by a commercial source at 1.55 micron. The span is a bandwidth record for the platform and demonstrates its potential as mid-infrared source. OCIS codes: (190.4390) Nonlinear optics, integrated optics; (320.6629) Supercontinuum generation Introduction The recent development of supercontinuum (SC) so...

Mid-infrared supercontinuum generation in suspended core tellurite microstructured optical fibers.

We report the fabrication of a tellurite optical fiber with a suspended core design, formed on a 220-nm-wide filament of glass. The fiber was pumped at two different wavelengths (1500 and 2400 nm) using femtosecond pulses generated from an optical parametric oscillator (OPO) in order to produce mid-infrared supercontinuum (SC). We observed that SC spectra extending to 3 μm were readily generate...