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Fiber-optic rf bandpass filter

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The use of noncoherent optics in signal processing applications can potentially provide high SNR and wide dynamic range operation. The filter described here operates on intensity modulated light to isolate a specific modulation frequency. In an rf spectrum analysis application, theory predicts that a dynamic range exceeding 60 dB (electrical) in a 10-MHz bandwidth is feasible.

© 1986 Optical Society of America

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