Method and system for hybrid integration of a tunable laser for a cable TV transmitter

摘要

A cable television transmitter includes a substrate including a silicon material, control electronics disposed in the substrate, and a gain medium coupled to the substrate. The gain medium includes a compound semiconductor material. The cable television transmitter also includes an optical modulator optically coupled to the gain medium and electrically coupled to the control electronics, a waveguide disposed in the substrate and optically coupled to the gain medium, a first wavelength selective element characterized by a first reflectance spectrum and disposed in the substrate, and a second wavelength selective element characterized by a second reflectance spectrum and disposed in the substrate. The cable television transmitter further includes an optical coupler disposed in the substrate and joining the first wavelength selective element, the second wavelength selective element, and the waveguide and an output mirror.

主权项

1. A cable television transmitter comprising:
a substrate comprising a silicon material and a recess region having an interface; control electronics disposed in the substrate; a gain medium coupled to the substrate and having a facet spatially separated from the interface by an index matching region, wherein the gain medium includes a compound semiconductor material; an optical modulator optically coupled to the gain medium and electrically coupled to the control electronics; a phase modulator optically coupled to the optical modulator; a waveguide disposed in the substrate and optically coupled to the gain medium; a first wavelength selective element characterized by a first reflectance spectrum and disposed in the substrate; a second wavelength selective element characterized by a second reflectance spectrum and disposed in the substrate; an optical coupler disposed in the substrate and joining the first wavelength selective element, the second wavelength selective element, and a phase adjustment section disposed in the silicon material substrate between the waveguide and the optical coupler, the phase adjustment section having a heating element; and an output mirror.