Title :
Reducing temporal fluctuation of signal intensity in optical wave mixing
Author :
Xie, Ping ; Taj, Imtiaz A. ; Mishima, Teruhito
Author_Institution :
Div. of Electron. & Inf. Eng., Hokkaido Univ., Sapporo, Japan
fDate :
5/1/2001 12:00:00 AM
Abstract :
In electrical amplifiers, the common method to reduce the fluctuation of the output signal is known as feedback. We show that, in optical wave-mixing systems where the total energy of the pump and the signal is conserved, the fluctuation of the signal intensity can be greatly reduced by returning a portion of the output pump to the input pump. The advantage of the latter method is that the signal intensity is not reduced, whereas in the former method the output of the signal is reduced by the same factor as its relative fluctuation is reduced
Keywords :
diffraction gratings; fluctuations; multiwave mixing; nonlinear media; optical feedback; optical noise; optical phase conjugation; total energy; electrical amplifiers; feedback; fluctuation; input pump; optical wave mixing; optical wave-mixing systems; output pump; output signal; pump energy; relative fluctuation; signal energy; signal intensity; temporal fluctuation; temporal fluctuation reduction; total energy; Fluctuations; Nonlinear optics; Optical amplifiers; Optical feedback; Optical harmonic generation; Optical mixing; Optical pumping; Optical scattering; Optical signal processing; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
