Related Experiment Video
Updated: Feb 14, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Single-photodiode per polarization receiver with signal-signal beat interference suppression through heterodyne
Abstract:
We show that a simplified, single-photodiode per polarization heterodyne receiver is able to directly suppress signal-signal beat interference (SSBI), without the need for cancellation in the digital domain. We characterize performance degradation due to SSBI, and show that a strong LO in the receiver can mitigate SSBI. Transmission of 400 Gb/s-class signals is shown over single fiber spans of up to 160 km, and over field-deployed metropolitan area fiber. These results indicate that a single photodiode can be used to receive complex optical signals in high speed fiber systems without the need for SSBI cancellation in the digital domain.
More Related Videos
Related Concept Videos
Bacterial Signaling
Synaptic Signaling
What is Cell Signaling?
Yeast Signaling
Endocrine Signaling
Paracrine Signaling

