Abstract

Phase modulation has emerged as a technique to create and manipulate high-dimensional frequency-bin entanglement. A necessary step to extending this technique to depolarized channels, such as those in a quantum networking environment, is the ability to perform phase modulation independent of photon polarization. This is also necessary to harness hyperentanglement in the polarization and frequency degrees of freedom for operations such as Bell state discrimination. However, practical phase modulators are generally sensitive to the polarization of light, and this makes them unsuited to such applications. We overcome this limitation by implementing a polarization diversity scheme to measure frequency-bin entanglement for arbitrary orientations of co- and cross-polarized time-energy entangled photon pairs.

© 2019 Optical Society of America

Scalable and efficient source of entangled frequency bins

Marco Liscidini and J. E. Sipe
Opt. Lett. 44(11) 2625-2628 (2019)

Frequency-induced phase-tunable polarization-entangled narrowband biphotons

Peng Chen, Xianxin Guo, Chi Shu, M. M. T. Loy, and Shengwang Du
Optica 2(5) 505-508 (2015)

Persistent energy–time entanglement covering multiple resonances of an on-chip biphoton frequency comb

Jose A. Jaramillo-Villegas, Poolad Imany, Ogaga D. Odele, Daniel E. Leaird, Zhe-Yu Ou, Minghao Qi, and Andrew M. Weiner
Optica 4(6) 655-658 (2017)

50-GHz-spaced comb of high-dimensional frequency-bin entangled photons from an on-chip silicon nitride microresonator

Poolad Imany, Jose A. Jaramillo-Villegas, Ogaga D. Odele, Kyunghun Han, Daniel E. Leaird, Joseph M. Lukens, Pavel Lougovski, Minghao Qi, and Andrew M. Weiner
Opt. Express 26(2) 1825-1840 (2018)

Direct generation of frequency-bin entangled photons via two-period quasi-phase-matched parametric downconversion

Fumihiro Kaneda, Hirofumi Suzuki, Ryosuke Shimizu, and Keiichi Edamatsu
Opt. Express 27(2) 1416-1424 (2019)