Efficient coupling of starlight into single mode photonics using Adaptive Injection (AI)

Barnaby Norris; Nick Cvetojevic; Simon Gross; Alexander Arriola; Peter Tuthill; Jon Lawrence; Samuel Richards; Michael Goodwin; Jessica Zheng

doi:10.1117/12.2233757

9 August 2016 Efficient coupling of starlight into single mode photonics using Adaptive Injection (AI)

Barnaby Norris, Nick Cvetojevic, Simon Gross, Alexander Arriola, Peter Tuthill, Jon Lawrence, Samuel Richards, Michael Goodwin, Jessica Zheng

Author Affiliations +

Proceedings Volume 9908, Ground-based and Airborne Instrumentation for Astronomy VI; 99085E (2016) https://doi.org/10.1117/12.2233757
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

Using single-mode fibres in astronomy enables revolutionary techniques including single-mode interferometry and spectroscopy. However, injection of seeing-limited starlight into single mode photonics is extremely difficult. One solution is Adaptive Injection (AI). The telescope pupil is segmented into a number of smaller subapertures each with size ~ r₀, such that seeing can be approximated as a single tip / tilt / piston term for each subaperture, and then injected into a separate fibre via a facet of a segmented MEMS deformable mirror. The injection problem is then reduced to a set of individual tip tilt loops, resulting in high overall coupling efficiency.

Citation Download Citation

Barnaby Norris, Nick Cvetojevic, Simon Gross, Alexander Arriola, Peter Tuthill, Jon Lawrence, Samuel Richards, Michael Goodwin, and Jessica Zheng "Efficient coupling of starlight into single mode photonics using Adaptive Injection (AI)", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99085E (9 August 2016); https://doi.org/10.1117/12.2233757

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