Related Experiment Video
Updated: Jan 12, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
200 G self-coherent PON based on SiP CROW filter-enabled dual-polarization carrier-extracted self-coherent detection
Abstract:
In this Letter, we present a 200 G C-band self-coherent PON based on dual-polarization (DP) carrier-extracted self-coherent (CESC) detection. Applying a narrowband silicon photonic (SiP) coupled resonator optical waveguide (CROW) filter, a pure carrier can be extracted from the received signal to beat with the DP self-coherent signal, realizing a coherent-like detection without local oscillators. Conveying a 223.2-Gbps DP-QPSK signal with an SOA pre-amplification in the downstream transmission, the self-coherent PON can realize a 33-dB loss budget over 20-km SSMF under 1 × 10-2 BER threshold. As a cost-effective and performant scheme, DP-CESC detection-based self-coherent PON is promising for the next-generation PON beyond 100 G.
Related Concept Videos
Carrier Generation and Recombination
This process is given by the generation rate G and is efficient due to the conservation of momentum between the valence band maximum and conduction band minimum.
Indirect generation involves an...
Receiver Operating Characteristic Plot
Group Polarization
Cascaded Op Amps
In a cascaded system, each op-amp is referred to as a stage. The output of one stage drives the input of the subsequent stage. As the input signal passes through...
Induced Electric Dipoles
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)

