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Updated: Jun 3, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Chaotic oscillations associated with the breakup of polarization entangled coherent states in a microchip solid-state
Kenju Otsuka1, Yun-Ting Chen, Shu-Chun Chu
1Department of Human and Information Science, Tokai University, Hiratsuka, Kanagawa, Japan. ootsuka@keyaki.cc.u-tokai.ac.jp
Abstract:
We demonstrate the breakup of spatial-polarization entangled lasing patterns, which possess vector phase singularities, and the resultant dynamic instabilities featuring chaotic oscillations. The frequency splitting between a pair of Ince-Gauss (IG) lasing modes, originally forming a coherent entanglement state, and a self-excited additional nonorthogonal IG mode through a new class of transverse effect of self-injection pattern seeding, is shown to result in modal-interference-induced modulation at the beat frequency, leading to chaotic oscillations.
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