name: Ido Attia Supervised by Dan Sadot PhD Student Title: Physical Layer Security utilizing a Multi-Homodyne Coherent Detection scheme.

Title: Physical Layer Security utilizing a Multi-Homodyne Coherent Detection scheme. Abstract: As quantum computing advances, conventional encryption faces an existential threat. The 'harvest-now-decrypt-later' strategy ensures that sensitive data transmitted today remains vulnerable to future decryption. This talk presents an innovative approach to Physical Layer Security: Multi-Homodyne Coherent Detection (MHCD). By leveraging the massive bandwidth and unique phase characteristics of mode-locked lasers, this scheme creates a robust defense that renders data un-harvestable by quantum adversaries. As it transitions from laboratory research to commercial availability, this technology offers a practical path toward quantum-secure communications. We will explore the underlying architecture of the MHCD scheme and the specific engineering hurdles overcome to transform a complex optical concept into a viable commercial product.