Entangled photon pair source with efficient modal phase matching on AlGaAs platform: a solution to fully connected quantum internet

Bin Niu; Xiaodong Zheng; Xu Jing; Cheng Qian; Yufu Li; Yuechan Kong; Tangsheng Chen; Liangliang Lu

doi:10.1117/12.3023787

18 March 2024 Entangled photon pair source with efficient modal phase matching on AlGaAs platform: a solution to fully connected quantum internet

Bin Niu, Xiaodong Zheng, Xu Jing, Cheng Qian, Yufu Li, Yuechan Kong, Tangsheng Chen, Liangliang Lu

Author Affiliations +

Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 131046J (2024) https://doi.org/10.1117/12.3023787
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China

Abstract

One of the key challenges for realizing large-scale quantum communication in installed fiber networks is to establish communication links between multiple users in a scalable and robust way. Quantum networks based on DWDM quantum correlation utilizing broadband entangled photon pair source could be the solution. Among many integrated photon source techniques, AlGaAs Bragg reflection waveguid (BRW), with its extremely high material χ⁽²⁾ and negligible birefringence, can produce high brightness, wide bandwidth, post selection free polarization entangled photon pairs. In a scenario of entangled photon and classical light co-fiber transmitting, noise from the classical light could degrade the entanglement. In this paper. we designed and fabricated a Bragg reflection waveguide (BRW) AlGaAs/GaAs chip with high modal overlap to directly generate broadband polarization entanglement, and employed for demonstrate a fully connected three-user noisy network by multiplexing 3 pairings of DWMD channels, each pairing established a quantum communication link between any possible two users. Several causes of noise from chip fluorescence to co-fiber classical light, and their impacts on bit error rate (BER) were analyzed.

Citation Download Citation

Bin Niu, Xiaodong Zheng, Xu Jing, Cheng Qian, Yufu Li, Yuechan Kong, Tangsheng Chen, and Liangliang Lu "Entangled photon pair source with efficient modal phase matching on AlGaAs platform: a solution to fully connected quantum internet", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 131046J (18 March 2024); https://doi.org/10.1117/12.3023787

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available