A new design of pulsed laser diode driver system for multistate quantum key distribution

• Main Authors: Abdullah M.S., Jamaludin M.Z., Witjaksono G., Mokhtar M.H.H.
• Other Authors: 16021116200
• Format: Article
• Published: 2023
• Subjects: Quantum key distribution; Six quantum states; Weak coherence laser pulse; Laser pulses; Lasers; Mirrors; MOSFET devices; Quantum chemistry; Quantum cryptography; Quantum theory; Semiconductor diodes; Semiconductor lasers; Biphotons; Constant rate; Current mirrors; Current-mirror circuits; Digital signal controllers; Duty cycles; Laser diode drivers; Laser diodes; Laser driver; Modulation current; MOS-FET; Multi state; New design; Peak currents; Pulsed laser diodes; Quantum state; Semiconductor laser diodes; Pulsed lasers
• Institution: Universiti Tenaga Nasional

In this paper, we describe a new design of laser diode driver system based on MOSFET current mirror and digital signal controller (DSC). The system is designed to emit stream pairs of photons from three semiconductor laser diodes. The DSC is able to switch between the three laser diodes at constant...