Abstract
Programmable broadband rf filters are demonstrated using a compact retroreflective optical design with an acousto-optic tunable filter and a chirped fiber Bragg grating. This design enables fast 34
μs domain analog-mode control of rf filter time delays and weights. Two proof-of-concept filters are demonstrated including a two-tap notch filter with
notch depth and a four-tap bandpass filter. Both filters have 2–8 GHz tunability and a
reset time.
© 2007 Optical Society of America
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