The Asgard/BIFROST pre-injection optics and fiber injection module: optomechanical design and lab results

Jyotirmay Paul; Daniel Mortimer; Sorabh Chhabra; Daniel Lancaster; Owain Snaith; Sidney Skellett; Arthur Kitching; Stefan Kraus; John Monnier; Michael Ireland

doi:10.1117/12.3018779

28 August 2024 The Asgard/BIFROST pre-injection optics and fiber injection module: optomechanical design and lab results

Jyotirmay Paul, Daniel Mortimer, Sorabh Chhabra, Daniel Lancaster, Owain Snaith, Sidney Skellett, Arthur Kitching, Stefan Kraus, John Monnier, Michael Ireland

Author Affiliations +

Proceedings Volume 13095, Optical and Infrared Interferometry and Imaging IX; 1309521 (2024) https://doi.org/10.1117/12.3018779
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The BIFROST instrument is poised to revolutionize high-spectral resolution interferometry at the VLTI by extending the accessible wavelength range down to 1.0μm, encompassing the Y, J, and H bands. In this paper, we discuss the optical design for BIFROST’s pre-injection optics which correct for birefringence effects and longitudinal dispersion between the different beam lines. We present the optomechanical design for the light injection module that compresses the beams and injects them into single-mode fibres, while maintaining the full field-of-view of the VLTI auxiliary or unit telescopes. Our fibre switching module will allow for the injection of light into photonic devices optimised for different wavebands or applications. Finally, we outline our integration and alignment strategy and present the first characterisation results obtained in the optics lab at the University of Exeter.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jyotirmay Paul, Daniel Mortimer, Sorabh Chhabra, Daniel Lancaster, Owain Snaith, Sidney Skellett, Arthur Kitching, Stefan Kraus, John Monnier, and Michael Ireland "The Asgard/BIFROST pre-injection optics and fiber injection module: optomechanical design and lab results", Proc. SPIE 13095, Optical and Infrared Interferometry and Imaging IX, 1309521 (28 August 2024); https://doi.org/10.1117/12.3018779

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