Engineering Low-Loss Silicon Quantum Photonics in the Mid-Infrared

Autor: Takao Aoki, Pisu Jiang, Yuya Yonezu, Dominic A. Sulway, John Rarity, Lawrence M. Rosenfeld, Joshua W. Silverstone, Quinn M. B. Palmer
Rok vydání: 2021
Předmět:
Zdroj: 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
DOI: 10.1109/cleo/europe-eqec52157.2021.9541667
Popis: Quantum silicon photonics must overcome considerable loss engineering challenges before it can scale to the millions of physical qubits required for fault tolerant quantum computation [1] . The first such challenge is the intrinsic two-photon absorption (TPA), present in silicon at telecommunications wavelengths. This places fundamental limits on the heralding or Klyshko efficiency of silicon photon-pair sources based on spontaneous four-wave mixing (SFWM) [2] . We have recently shown that by moving to a pump wavelength beyond 2-microns, in the mid-infrared (MIR), TPA in silicon can be curtailed, and by using 340-nm thick silicon waveguides, phase matching can be achieved for efficient SFWM [2] .
Databáze: OpenAIRE