A proposal of a photonic local system for the extended Atacama large millimeter/submillimeter array and advanced radio interferometers

H. Kiuchi

doi:10.1117/12.2312406

9 July 2018 A proposal of a photonic local system for the extended Atacama large millimeter/submillimeter array and advanced radio interferometers

H. Kiuchi

Author Affiliations +

Proceedings Volume 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX; 1070813 (2018) https://doi.org/10.1117/12.2312406
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

In ALMA, considerable effort is being made to realize a long-baseline observation and a high-frequency observation. To be implemented these observations, it is required to deliver a high-stable LO signal with frequency switching capability. For high-frequency observations, the frequency switching function is indispensable to compensate atmospheric scintillation. We propose a photonic local oscillator (LO) system capable of satisfying required performances without any modifications on the ALMA antenna side. Furthermore, a direct photonic LO system over a large broadband system has a capable of being applied to the next generation ALMA, and advanced Radio Interferometers. In this paper, the high-frequency LO signal is generated and transmitted as a beat signal of dual-wavelength optical signal. The final purpose of this research is to provide a direct photonic LO system with a cable transmission correction over a large broadband from microwave to terahertz frequencies for advanced Radio Interferometers.

Conference Presentation

Citation Download Citation

H. Kiuchi "A proposal of a photonic local system for the extended Atacama large millimeter/submillimeter array and advanced radio interferometers", Proc. SPIE 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX, 1070813 (9 July 2018); https://doi.org/10.1117/12.2312406

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