Enhanced wavelength conversion and photon pair generation using slow light effects and electronic carrier sweepout in silicon photonics devices

Marc Savanier; Ranjeet Kumar; Shayan Mookherjea

doi:10.1117/12.2086780

10 March 2015 Enhanced wavelength conversion and photon pair generation using slow light effects and electronic carrier sweepout in silicon photonics devices

Marc Savanier, Ranjeet Kumar, Shayan Mookherjea

Author Affiliations +

Proceedings Volume 9378, Slow Light, Fast Light, and Opto-Atomic Precision Metrology VIII; 93780R (2015) https://doi.org/10.1117/12.2086780
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Silicon photonics has drawn a lot of attention over the last decades, mainly in telecom-related application fields where the nonlinear optical properties of silicon are ignored or minimized. However, silicon’s high χ⁽³⁾ Kerr optical nonlinearity in sub-micron-scale high-confinement waveguides can enable significant improvements in traditional nonlinear devices, such as for wavelength conversion, and also enable some device applications in quantum optics or for quantum key distribution. In order to establish the viability of silicon photonics in practical applications, some big challenges are to improve the optical performance (e.g., optimize nonlinearity or minimize loss) and integration of optics with microelectronics. In this context, we discuss how electronic PIN diodes improve the performance of wavelength conversion in a microring resonator based four-wave mixing device, which achieves a continuous-wave four-wave mixing conversion efficiency of −21.3 dB at 100 mW pump power, with enough bandwidth for the wavelength conversion of a 10 Gbps signal. In the regime of quantum optics, we describe a coupled microring device that can serve as a tunable source of entangled photon pairs at telecommunications wavelengths, operating at room temperature with a low pump power requirement. By controlling either the optical pump wavelength, or the chip temperature, we show that the output bi-photon spectrum can be varied, with implications on the degree of frequency correlation of the generated quantum state.

Citation Download Citation

Marc Savanier, Ranjeet Kumar, and Shayan Mookherjea "Enhanced wavelength conversion and photon pair generation using slow light effects and electronic carrier sweepout in silicon photonics devices", Proc. SPIE 9378, Slow Light, Fast Light, and Opto-Atomic Precision Metrology VIII, 93780R (10 March 2015); https://doi.org/10.1117/12.2086780

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KEYWORDS

Silicon

Resonators

Waveguides

Silicon photonics

Signal attenuation

Slow light

Microresonators

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