We report on a novel scheme based on spectral holography for high-speed processing of optical header information. In this scheme, we rapidly analyze each incoming header by performing simultaneous correlation operations with a large number of headers stored in advance through angular multiplexing. Decoding is accomplished by identification of the directions that yield the maximum correlation signal. In a proof-of-concept experiment, two 5-byte ASCII addresses were decoded successfully without any ambiguity. The potential of this technique for high-speed packet switching is discussed.
© 1995 Optical Society of America
Original Manuscript: June 9, 1995
Published: December 15, 1995
X. A. Shen and R. Kachru, "Optical header recognition by spectroholographic filtering," Opt. Lett. 20, 2508-2510 (1995)