Heterogeneous Nonlinear Integrated Photonics

Integrated photonics : compact multiplexing

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Diamond nonlinear photonics

Despite progress towards integrated diamond photonics1–4, studies of optical nonlinearities in diamond have been limited to Raman scattering in bulk samples5. Diamond nonlinear photonics, however, could enable efficient, in situ frequency conversion of single photons emitted by diamond’s colour centres6,7, as well as stable and high-power frequency microcombs8 operating at new wavelengths. Both...

Photonics of Heterogeneous Dielectric Nanostructures

Heterogeneous lithium niobate photonics on silicon substrates.

A platform for the realization of tightly-confined lithium niobate photonic devices and circuits on silicon substrates is reported based on wafer bonding and selective oxidation of refractory metals. The heterogeneous photonic platform is employed to demonstrate high-performance lithium niobate microring optical resonators and Mach-Zehnder optical modulators. A quality factor of ~7.2 × 10⁴ is m...

Integrated photonics with programmable non-volatile memory.

Silicon photonics integrated circuits (Si-PIC) with well-established active and passive building elements are progressing towards large-scale commercialization in optical communications and high speed optical interconnects applications. However, current Si-PICs do not have memory capabilities, in particular, the non-volatile memory functionality for energy efficient data storage. Here, we propo...