• Photonic delay lines using polarization selective holograms for optical signal routing 

  Madamopoulos, Nicholas; Riza, Nabeel A. (Society of Photo-Optical Instrumentation Engineers (SPIE), 1998-08-25)

  The use of polarization selective holograms for the implementation of photonic delay lines (PDLs) is proposed. A single bit PDL using FLC devices as active polarization switches and polymer dispersed liquid crystal (PDLC) ...
• Photonic signal processing for inverse synthetic aperture radar imaging. 

  Riza, Nabeel A.; Pape, Dennis R. (Society of Photo-Optical Instrumentation Engineers (SPIE), 1998-08-25)

  A robust signal processor, capable of handling a multitude of signal processing functions over a wide instantaneous signal bandwidth is needed for future military systems where shared sensor and signal processing resources ...
• Robust packaging of photonic RF modules using ultrathin adaptive optical interconnect devices 

  Riza, Nabeel A.; Yuan, ShiFu (Society of Photo-Optical Instrumentation Engineers (SPIE), 1997-10-23)

  Ultra-thin, electrically programmable, low control power optical devices are proposed as adaptive optical alignment correction devices for future deployable photonic modules for RF signal processing applications. A substantial ...
• Switched photonic delay line for phased array antenna control using externally modulated microwave fiber-optic kink 

  Madamopoulos, Nicholas; Riza, Nabeel A. (Society of Photo-Optical Instrumentation Engineers (SPIE), 1997-10-23)

  The first demonstration of a 4-bit binary photonic delay line using ferroelectric liquid crystal (FLC) devices and externally modulated S/C band fiber-optic link is presented. A Mach-Zehnder integrated-optic modulator is ...
• Switched three dimensional photonic delay line using directly modulated semiconductor lasers for microwave radar processing 

  Madamopoulos, Nicholas; Riza, Nabeel A. (Society of Photo-Optical Instrumentation Engineers (SPIE), 1996-11-05)

  A 3-bit binary photonic delay line is demonstrated at 1 GHz using a directly modulated semiconductor laser and remote interconnection fiber-optics. Three types of freespace delay bit geometries are tested for 5.686 ns, ...

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