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We demonstrate a CMOS-compatible mid-infrared detector at wavelengths ranging from 3.36 μm to 3.74 μm by exciting mid bandgap states in a sulfur-doped silicon waveguide with responsivities up to 2.2mA/W.
We demonstrate mode-hop-free tuning of a modelocked frequency comb over 60 GHz in a silicon microresonator. A gas-phase spectroscopy of acetylene is performed with a high-spectral-resolution (< 80 MHz) over a bandwidth of 40 THz.
We demonstrate that silicon photonics can be leveraged for nonlinear optics in the mid-infrared range from 3–6μm. We fabricate an air-clad microresonator with Q=1 million at 3.79μm wavelength and demonstrate 5.3mW parametric oscillation threshold power.
We demonstrate a microresonator-based dual-comb source. Operation is achieved in the mid-infrared with a single continuous-wave pump source using two silicon microresonators that are each modelocked using thermal control and free-carrier injection.
We demonstrate a low-loss fully-air-clad suspended silicon platform for mid-infrared photonics. We fabricate a suspended microring resonator with a high quality factor of 83,000 at 3.79 μm wavelength and suspended nanotapers using etchless waveguide processing.
We demonstrate a near-octave spanning and soliton modelocked mid-infrared frequency comb in a silicon microresonator. The soliton state can be accomplished via either pump laser detuning or electrical tuning of the free-carrier lifetime.
We present the first observations of breather solitons in microresonators. Our results provide a new perspective on the evolution towards stable soliton formation in microresonator frequency combs.
We show the first demonstration of frequency conversion via four wave mixing in a silicon carbide channel waveguide with a conversion efficiency as high as −19.5 dB over a 180 nm wavelength range.
We demonstrate low-noise mid-infrared frequency comb generation using a silicon microresonator. Using an integrated PIN-diode detector, we show a transition to a low RF-amplitude-noise state consistent with demonstrations of phase-locking in other microresonator platforms.
We report the first on-chip integrated mid-infrared frequency comb using a silicon optical parametric oscillator ring resonator. We demonstrate a 750-nm-wide comb centered at 2.6 um.
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