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A novel athermal scheme based on resonance splitting of dual-ring structure is proposed and proved. An athermal resonator based on this scheme is demonstrated, achieving athermal transmission over a temperature range of at least 40K.
To demonstrate control over the quantum spectrum of light, we tune the joint spectral intensity of photon pairs generated at telecommunications wavelengths using a low-power diode-pumped compact CMOS-compatible silicon chip at room temperature.
We demonstrate almost synchronized temperature dependent wavelength shift of Al2O3:Er3+ DFB laser (2.57 GHz/°C) and Si3N4 ring filter (2.47 GHz/°C), which makes it possible for on-chip transceiver operation without temperature control.
CMOS integrated Silicon Photonics offers a compact solution for a fully functional optical engine. The interdependence of optical and electrical components is discussed and arguments for a co-optimization of these components are given.
We propose a novel structure for two monolithically integrated PPLN waveguides with a reflective wavelength-division multiplexer consisting of two MMIs and a dichroic mirror. Frequency conversion through two-stage SHG/DFG processes is demonstrated using the integrated device.
We present on the demonstration of a number of critical device technologies including record low power modulators, tunable filters, and integrated lasers, along with the world's largest silicon photonic circuit, integrated on a 300mm platform.
A novel polarization converter and filter based on silicon multimode interference couplers (MMI) has been demonstrated. The measured transmission spectra of the proposed device for the light with arbitrary polarization exhibit a good performance.
A wavelength selective 1-by-8-port optical broadcasting system is proposed and demonstrated utilizing partial drop adiabatic microring tunable filters, achieving a 92.7GHz filter bandwidth, 36.2nm Free-Spectral-Range, low power-variation (0.11dB), and aggregate excess loss of only 1.1dB.
In the presence of gain and loss, supersymmetric transformations facilitate the arbitrary removal of modes from wave-guiding structures. We show how SUSY gives rise to non-PT-symmetric families of complex potentials with entirely real-valued eigenvalue spectra.
We report an on-chip all-optical CMOS-compatible radio frequency spectrum analyzer with a bandwidth exceeding 2.5 THz, and use it to measure the intensity power spectra of mode-locked lasers with repetition rates up to 400 GHz.
We demonstrate microring resonators with full tunability, modulation bandwidths exceeding the linewidth limit, and improved tolerance to wafer-scale variations. Novel device architectures and designs enable microrings to become more practical for integrated photonics.
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