Method And System For A Low-Voltage Integrated Silicon High-Speed Modulator

摘要

Methods and systems for a low-voltage integrated silicon high-speed modulator may include an optical modulator comprising first and second optical waveguides and two optical phase shifters, where each of the two optical phase shifters may comprise a p-n junction with a horizontal section and a vertical section and an optical signal is communicated to the first optical waveguide. A portion of the optical signal may then be coupled to the second optical waveguide. A phase of at least one optical signal in the waveguides may be modulated utilizing the optical phase shifters. A portion of the phase modulated optical signals may be coupled between the two waveguides, thereby generating two output signals from the modulator. A modulating signal may be applied to the phase shifters which may include a reverse bias.

主权项

1. A method for communication, the method comprising:
in an optical modulator comprising first and second optical waveguides and two optical phase shifters, each of the two optical phase shifters comprising a p-n junction with a horizontal section and a vertical section, wherein in each of the two optical phase shifters, a first of a p-doped region and an n-doped region is in a slab waveguide portion and in a rib waveguide portion of the phase shifters and a second of the p-doped region and n-doped region is only in the slab waveguide portion, and wherein in each of the two optical phase shifters, p+ and p++ regions and n+ and n++ regions extend above a top surface of the waveguide portion of the phase shifters:
communicating an optical signal to the first optical waveguide, wherein a portion of the optical signal is coupled to the second optical waveguide;modulating a phase of at least one optical signal in the first and second waveguides utilizing the optical phase shifters; andcoupling a portion of the phase modulated optical signals between the two waveguides, thereby generating output signals from both output waveguides of the modulator.