CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume PC12889 > Article
Presentation
13 March 2024 Generating entangled photon pairs in thin film lithium niobate for quantum communication
Guhwan Kim, Tetiana V. Slusar, Hong-Seok Kim, Jinwoo Kim, Jiho Park, Jin Tae Kim, Jaegyu Park, Kiwon Moon, Myung-Hyun Lee, Jung Jin Ju
Author Affiliations +
Proceedings Volume PC12889, Integrated Optics: Devices, Materials, and Technologies XXVIII; PC128890G (2024) https://doi.org/10.1117/12.3002070
Event: SPIE OPTO, 2024, San Francisco, California, United States
Abstract
Spontaneous parametric down conversion in nonlinear material is widely exploited to generate entangled photon pairs in quantum optics experiments and applications, including quantum computing and communication. Periodically poled thin film lithium niobate (PPTFLN) has emerged as a promising platform for efficient entangled photon pair generation, offering enhanced nonlinear interaction through quasi-phase matching (QPM) and tight confinement of light. However, achieving optimal performance requires careful control of the QPM condition since the waveguide in TFLN is highly dispersive to changes in the geometric parameter. In this study, we fabricate PPTFLN rib waveguides to generate entangled photon pairs at telecommunication wavelengths, varying geometric parameters. QPM condition is confirmed with the second harmonic generation experiments and Pair generation rate and coincidence-to-accidental count ratio are also estimated by temporal coincidence measurement. Digital etching process is introduced to control the QPM condition, resulting in incremental peak wavelength shift by discrete etching step. This is expected to contribute to synchronizing wavelength of quantum nodes.
Conference Presentation
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Guhwan Kim, Tetiana V. Slusar, Hong-Seok Kim, Jinwoo Kim, Jiho Park, Jin Tae Kim, Jaegyu Park, Kiwon Moon, Myung-Hyun Lee, and Jung Jin Ju "Generating entangled photon pairs in thin film lithium niobate for quantum communication", Proc. SPIE PC12889, Integrated Optics: Devices, Materials, and Technologies XXVIII, PC128890G (13 March 2024); https://doi.org/10.1117/12.3002070
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
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
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Quantum entanglement
Harmonic generation
Lithium niobate
Thin films
Quantum communications
Second harmonic generation
Quantum light generation
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top