Optical communications – Transmitter and receiver system – Including compensation
Reexamination Certificate
2006-06-28
2009-12-01
Sedighian, M. R. (Department: 2613)
Optical communications
Transmitter and receiver system
Including compensation
C398S102000, C398S085000, C398S053000
Reexamination Certificate
active
07627253
ABSTRACT:
A method and apparatus for implementing an RF photonic transversal filter that utilizes tap apodization and wavelength reuse to obtain a high side lobe suppression together with narrow and configurable passbands. Several taps are obtained from one wavelength by using dispersive optical delay lines such as chirped fiber gratings that introduce a delay between successive wavelengths. A selected subset of the input wavelengths is utilized to generate multiple taps per wavelength. Some of the taps are apodized to generate various filter transfer functions that yield a high side lobe suppression ratio.
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Christie Parker & Hale
HRL Laboratories LLC
Sedighian M. R.
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