An InP-based integrated modulated coherent state source for differential phase shift quantum key distribution
Ozan Çirkinoglu, Rui Santos, Kevin A. Williams, Xaveer J. M. Leijtens · TU/e Research Portal · 2019
A low-cost 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 is presented. Initial characterization results of the laser, and the modulator sections are demonstrated.