Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Atmospheric wavefront phase recovery by use of specialized hardware: graphical processing units and field-programmable gate arrays

Not Accessible

Your library or personal account may give you access

Abstract

To achieve the wavefront phase-recovery stage of an adaptive-optics loop computed in real time for 32 × 32 or a greater number of subpupils in a Shack–Hartmann sensor, we present here, for what is to our knowledge the first time, preliminary results that we obtained by using innovative techniques: graphical processing units (GPUs) and field-programmable gate arrays (FPGAs). We describe the stream-computing paradigm of the GPU and adapt a zonal algorithm to take advantage of the parallel computational power of the GPU. We also present preliminary results we obtained by use of FPGAs on the same algorithm. GPUs have proved to be a promising technique, but FPGAs are already a feasible solution to adaptive-optics real-time requirements, even for a large number of subpupils.

© 2005 Optical Society of America

Full Article  |  PDF Article
More Like This
Efficient implementation of the Shack–Hartmann centroid extraction for edge computing

Jacopo Mocci, Federico Busato, Nicola Bombieri, Stefano Bonora, and Riccardo Muradore
J. Opt. Soc. Am. A 37(10) 1548-1556 (2020)

Development of a multitechnology field-programmable gate array suitable for photonic information processing

Prosenjit Mal, Jason F. Cantin, and Fred R. Beyette
Appl. Opt. 44(22) 4753-4760 (2005)

Graphics processing unit accelerated computation of digital holograms

Hoonjong Kang, Fahri Yaraş, and Levent Onural
Appl. Opt. 48(34) H137-H143 (2009)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved