Abstract

We have observed faithful storage and retrieval of multiple data pulses for up to 5 h in Eu³⁺:YAlO₃ crystal by using the backward-stimulated echo. We find no loss of echo fidelity as the storage time is increased. Furthermore the lack of cross talk between the input data pulses suggests that faithful long-term storage and retrieval of a large number of data pulses are possible. Our measured echo-storage lifetime of 3.8 h is to our knowledge the longest reported thus far.

© 1989 Optical Society of America

248-Bit optical data storage in Eu³⁺:YAlO₃ by accumulated photon echoes

M. Mitsunaga and N. Uesugi
Opt. Lett. 15(3) 195-197 (1990)

Frequency-chirped copropagating multiple-bit stimulated-echo storage and retrieval in Pr³⁺:YAlO₃

S. Kröll, L. E. Jusinski, and R. Kachru
Opt. Lett. 16(7) 517-519 (1991)

Many-bit optical data storage using stimulated echoes

Myung-Keun Kim and Ravinder Kachru
Appl. Opt. 28(12) 2186-2189 (1989)

Long-term image storage and phase conjugation by a backward-stimulated echo in Pr³⁺:LaF₃

M. K. Kim and R. Kachru
J. Opt. Soc. Am. B 4(3) 305-308 (1987)

Storage and phase conjugation of multiple images using backward-stimulated echoes in Pr³⁺:LaF₃

M. K. Kim and R. Kachru
Opt. Lett. 12(8) 593-595 (1987)