Broadband Balanced Homodyne Detector for High-Rate (>10 Gb/s) Vacuum-Noise Quantum Random Number Generation

TL;DR

This paper presents a high-performance balanced homodyne detector capable of generating quantum random numbers at over 10 Gb/s, integrating classical communication, and achieving high noise clearance over a broad bandwidth.

Contribution

Introduction of a die-level balanced homodyne detector with high quantum-to-classical noise clearance and integration of high-speed quantum random number generation with classical communication.

Findings

Quantum noise clearance of 19.1dB over 3GHz

Random number generation rate exceeds 10 Gb/s

Successful integration of classical 10Gb/s communication channel

Abstract

We demonstrate a die-level balanced homodyne detector with a high quantum-to-classical noise clearance of 19.1dB over 3GHz bandwidth. We evaluate this receiver as a high-quality entropy source for random number generation at >10Gb/s and prove the functional integration of a classical 10Gb/s duobinary communication channel.