Computer-generated complex filter for an all-optical and a digital optical hybrid correlator

Philip M. Birch; Rupert C. D. Young; Frederic Claret-Tournier; David M. Budgett; Christopher R. Chatwin

doi:10.1117/1.1425785

1 January 2002 Computer-generated complex filter for an all-optical and a digital optical hybrid correlator

Philip M. Birch, Rupert C. D. Young, Frederic Claret-Tournier, David M. Budgett, Christopher R. Chatwin

Optical Engineering, Vol. 41, Issue 1, (January 2002). https://doi.org/10.1117/1.1425785

We present results of a correlation filter utilizing a computergenerated hologram using an analog ferroelectric liquid-crystal spatial light modulator (SLM). The SLM amplitude-modulates light and can induce a 0-? phase shift, which is equivalent to modulating along the real axis. Two pixels are combined into a macropixel using a phase-detour technique enabling full complex modulation. The method is used as the filter for a conventional optical correlator and in a digital-optical hybrid correlator.

©(2002) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Philip M. Birch, Rupert C. D. Young, Frederic Claret-Tournier, David M. Budgett, and Christopher R. Chatwin "Computer-generated complex filter for an all-optical and a digital optical hybrid correlator," Optical Engineering 41(1), (1 January 2002). https://doi.org/10.1117/1.1425785

Published: 1 January 2002

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