Monolithically integrated differential phase shift transmitter for quantum key distribution

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Abstract

An integrated differential phase shift QKD transmitter, which consist of a distributed Bragg reflector laser, a phase modulator, and Mach-Zehnder modulator sections for pulse carving and optical attenuation has been designed and fabricated. Initial characterization shows single mode operation of the laser with a linewidth around 2 MHz, and an achievable optical attenuation of more than 60 dB.
Original languageEnglish
Title of host publicationProceedings of the 22nd European Conference on Integrated Optics, 2020
PublisherECIO
Publication statusPublished - 24 Jun 2020

Keywords

  • Photonic Integrated Circuits (PIC)
  • Quantum key distribution

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