PISTIL interferometry: metrology device for regular segmented wavefront measurement

C. Bellanger; T. Rousseaux; B. Rouzé; J. Primot

doi:10.1117/12.3017030

18 June 2024 PISTIL interferometry: metrology device for regular segmented wavefront measurement

C. Bellanger, T. Rousseaux, B. Rouzé, J. Primot

Proceedings Volume 12996, Unconventional Optical Imaging IV; 1299609 (2024) https://doi.org/10.1117/12.3017030
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

PISTIL interferometry (PISton and TILt interferometry), dedicated to the measurement of regular segmented wave surfaces such as segmented mirrors or the near-field output of coherent combined lasers, consists on making replicas of the central part of the wavefronts of each surface segment interfere with its nearest neighbors. The resulting interference pattern is made of an apposition of surfaces containing two-wave interference whose phase, frequency and orientation provide direct information on the respective heights and tilts of the segments in relation to each other. This technique has evolved into a new device called Full Light PISTIL. More compact and more efficient, this new version overcomes the drawbacks of previous PISTIL interferometer version by taking into account the whole surface of the incident wavefront. The performance obtained, estimated on a segmented mirror, is state of the art, and points the way towards a plug and play product adapted to the specific measurement needs of these surfaces, even in low light conditions.

Conference Presentation

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

Citation Download Citation

C. Bellanger, T. Rousseaux, B. Rouzé, and J. Primot "PISTIL interferometry: metrology device for regular segmented wavefront measurement", Proc. SPIE 12996, Unconventional Optical Imaging IV, 1299609 (18 June 2024); https://doi.org/10.1117/12.3017030

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