Highly efficient fiber-chip light coupling for optical quantum networks

Adam Legacy; Kaito Yamada; Carlos Pina-Hernandez; Keiko Munechika; Martin Gustafsson; Anshuman Singh; Adam Schwartzberg

doi:10.1117/12.3003324

12 March 2024 Highly efficient fiber-chip light coupling for optical quantum networks

Adam Legacy, Kaito Yamada, Carlos Pina-Hernandez, Keiko Munechika, Martin Gustafsson, Anshuman Singh, Adam Schwartzberg

Proceedings Volume PC12892, Optical Interconnects XXIV; PC1289204 (2024) https://doi.org/10.1117/12.3003324
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

Advancements in communication and quantum computing have led to the need for efficient quantum networks. Superconducting qubits are vital for quantum computation and require converting microwave states to optical states for long-distance communication. However, current coupling techniques suffer from high photon loss and scattering, hindering their efficiency. A fiber-to-chip coupler (FCC) is essential to achieve high coupling efficiency. To address this, a novel high refractive index lens (1.85 refractive index at 1550 nm) imprinted on a fiber end facet is proposed, enabling efficient light coupling to a waveguide. This approach allows shorter wavelengths due to the operation of the lens in the bonding medium, resulting in superior coupling efficiency. The new method aims to develop a robust packaging process for quantum communication networks that can operate at the millikelvin level.

Conference Presentation

Citation Download Citation

Adam Legacy, Kaito Yamada, Carlos Pina-Hernandez, Keiko Munechika, Martin Gustafsson, Anshuman Singh, and Adam Schwartzberg "Highly efficient fiber-chip light coupling for optical quantum networks", Proc. SPIE PC12892, Optical Interconnects XXIV, PC1289204 (12 March 2024); https://doi.org/10.1117/12.3003324

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