US Patent:
20030068114, Apr 10, 2003
Inventors:
Gayle Link - Smyrna GA, US
Ikechukwu Nnamani - Norcross GA, US
Gerald Ramdeen - Roswell GA, US
Sean Jones - Clarkston GA, US
Calvin Martin - Atlanta GA, US
Carlos Restrepos - Atlanta GA, US
Zelda Gills - Atlanta GA, US
Gary Baker - Atlanta GA, US
International Classification:
G02B006/12
G02B006/10
Abstract:
An all-optical semiconductor waveguide optical regenerative device uses a nonlinear ridge waveguide structure to mix an input signal with a local oscillator signal to produce wavelength-switched and optically-regenerated signals. The ridge waveguide structure, and the local oscillator sources, filters and amplifiers may be tunable, microprocessor-controlled and monolithically integrated. The present invention relates to semiconductor waveguide-based structures, photonic application-specific integrated circuits, which can be used for optical signal processing and, more particularly wavelength-conversion, wavelength-shifting, wavelength-translation, wavelength-switching, wavelength-routing and optical signal transmission, amplification, pulse-shaping and regeneration in optical networks by integrating multiple functions on monolithic semiconductor substrates of Indium Phosphide and its ternary and quaternary semiconductor material derivatives. The device has been fashioned from InP-InGaAsP material, other non-linear optical bulk or doped materials.