Abstract

An acousto-optic tapped delay-line finite-impulse-response filter that operates at a system intermediate frequency without requiring a reference optical beam is introduced. Principles of operation are theoretically derived and used to model the system frequency response and multiple-tap cross-talk performance. As an element of this derivation, a focused optical illumination of a diverging acoustic wave is analyzed. Experimental results are also provided for a multichannel acousto-optic tapped delay line operational over a 10-MHz bandwidth at an 80-MHz intermediate frequency.

© 1993 Optical Society of America

Holographic method of cohering fiber tapped delay lines

Max Colice, Ted Weverka, Gregory Kriehn, Friso Schlottau, and Kelvin Wagner
Appl. Opt. 44(25) 5257-5272 (2005)

Design and performance analysis of fiber-optic infinite-impulse response filters

Anjan Ghosh and Steve Frank
Appl. Opt. 31(23) 4700-4711 (1992)

Compact tunable microwave filter using retroreflective acousto-optic filtering and delay controls

Nabeel A. Riza and Farzan N. Ghauri
Appl. Opt. 46(7) 1032-1039 (2007)

Investigation of temporal Talbot operation in a conventional optical tapped delay line structure

Jianqi Hu, Simon J. Fabbri, Chen-Bin Huang, and Camille-Sophie Brès
Opt. Express 27(6) 7922-7934 (2019)

A new technique for 100-fold increase in the FSR of optical recirculating delay line filters using a time compression unit

T. A. Nguyen, E. H. W. Chan, and R. A. Minasian
Opt. Express 20(21) 23570-23581 (2012)