Title :
All-optical RF filter using amplitude inversion in a semiconductor optical amplifier
Author :
Coppinger, F. ; Yegnanarayanan, S. ; Trinh, P.D. ; Jalali, B.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
8/1/1997 12:00:00 AM
Abstract :
We present an all optical delay-line radio-frequency (RF) notch filter. The filter exploits cross-gain modulation in a homogeneously broadened laser medium to obtain a negative tap in an optically incoherent system. Applications including moving-target indication (MTI) in optically controlled radars are discussed
Keywords :
microwave filters; notch filters; optical delay lines; optical fibre filters; optical radar; semiconductor lasers; all-optical RF filter; amplitude inversion; cross-gain modulation; homogeneously broadened laser medium; moving-target indication; negative tap; notch filter; optical fibre delay-line filter; optically controlled radars; optically incoherent system; semiconductor optical amplifier; Laser radar; Optical beams; Optical control; Optical filters; Optical saturation; Optical sensors; Optical signal processing; Optical wavelength conversion; Radio frequency; Semiconductor optical amplifiers;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
