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We show a significant self-frequency shift of ultrafast cavity solitons associated with Kerr frequency combs in a dispersion-flattened nonlinear cavity. Dispersion induces a frequency shift up to 20% of the pump frequency.
We demonstrate compact silicon microring resonators suspended in air with ultra-high optical quality, achieving an intrinsic quality factor of 9.2×105 in the telecom band for the resonator with a radius of 9 µm.
Using dispersion flattening technique, a two-octave-wide nearly symmetric supercontinuum can be generated from visible to mid-IR wavelengths on a chip, which is accompanied by pulse compression from 120 to 4 fs (0.76 optical cycles).
We present an approach for generating an octave-spanning supercontinuum on a silicon chip using input pulse energy as low as 6.8 pJ. This is enabled by advanced dispersion engineering with a nanoscale slot structure. We analyze the performance of the supercontinuum generation in terms of bandwidth, spectral coherence, and flatness, under different operating conditions. We show that, accompanying with...
We observe, for the first time to our knowledge, spectral narrowing due to the formation of optical solitons inside a short 5 mm long silicon waveguide with sub-picojoule pulse energies.
We show that the dispersion in SOI waveguides can be tailored to reduce the zero-dispersion wavelength below 1.5 mum. Simulations indicate soliton-like propagation of 130-fs pulses at 1.55 mum inside such a device.
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