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.
|Title of host publication||Proceedings of the 22nd European Conference on Integrated Optics, 2020|
|Publication status||Published - 24 Jun 2020|
- Photonic Integrated Circuits (PIC)
- Quantum key distribution