Optical real-time correlator for implementation of phase-only composite filters

Danny Roberge; Yunlong Sheng

doi:10.1117/1.600858

1 September 1996 Optical real-time correlator for implementation of phase-only composite filters

Danny Roberge, Yunlong Sheng

Optical Engineering, Vol. 35, Issue 9, (September 1996). https://doi.org/10.1117/1.600858

We implement an optical continuous phase-only composite filter for security verification. An amplitude-mostly liquid crystal television (LCTV) is used for input and a phase-mostly LCTV is used for the phaseonly filter. We develop experimental techniques for optimizing the LCTV modulations and analyze the diffraction of both coupled-mode LCTVs. We use a new procedure for synthesizing the phase-only composite filters. The filter produces a narrow correlation peak without sidelobes. Experimentation results are shown.

Citation Download Citation

Danny Roberge and Yunlong Sheng "Optical real-time correlator for implementation of phase-only composite filters," Optical Engineering 35(9), (1 September 1996). https://doi.org/10.1117/1.600858

Published: 1 September 1996

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