Abstract

It is shown that a nearly degenerate four-wave mixing process is capable of yielding a real-time optical bandpass filter. The filter has a large field of view and is capable of providing an amplified bandpass. Moreover, the conjugate nature of the output field can be utilized to increase the signal-to-noise ratio of the device. For a 1-cm interaction length in a nondispersive medium, the optical bandpass at 5000 Å can be varied from ~9 GHz down to the linewidth of the exciting laser.

© 1978 Optical Society of America

Spatial convolution and correlation of optical fields via degenerate four-wave mixing

David M. Pepper, John AuYeung, Dan Fekete, and Amnon Yariv
Opt. Lett. 3(1) 7-9 (1978)

Configuration dependence of optical filtering characteristics in backward nearly degenerate four-wave mixing

S. Saikan and H. Wakata
Opt. Lett. 6(6) 281-283 (1981)

Degenerate four-wave mixing in absorbing media

R. L. Abrams and R. C. Lind
Opt. Lett. 2(4) 94-96 (1978)

Continuous-wave backward-wave generation by degenerate four-wave mixing in ruby

P. F. Liao and D. M. Bloom
Opt. Lett. 3(1) 4-6 (1978)

Transient analysis of nearly degenerate four-wave mixing

W. W. Rigrod, Robert A. Fisher, and Barry J. Feldman
Opt. Lett. 5(3) 105-107 (1980)