Method and System for Integrated Power Combiners

摘要

A system for integrated power combiners is disclosed and may include receiving optical signals in input optical waveguides and phase-modulating the signals to configure a phase offset between signals received at a first optical coupler, where the first optical coupler may generate output signals having substantially equal optical powers. Output signals of the first optical coupler may be phase-modulated to configure a phase offset between signals received at a second optical coupler, which may generate an output signal having an optical power of essentially zero and a second output signal having a maximized optical power. Optical signals received by the input optical waveguides may be generated utilizing a polarization-splitting grating coupler to enable polarization-insensitive combining of optical signals. Optical power may be monitored using optical detectors. The monitoring of optical power may be used to determine a desired phase offset between the signals received at the first optical coupler.

主权项

1. A system for processing optical signals, the system comprising:
a chip comprising a polarization controller, said polarization controller comprising an input optical waveguide, an optical coupler, and a polarization-splitting grating coupler, said chip being operable to:
generate two output signals from said polarization-splitting grating coupler that receives an input signal from said input optical waveguide;phase modulate one or both of said two output signals to configure a phase offset between said two generated output signals before communicating signals with said phase offset to said optical coupler; andlaunch an optical signal of a desired polarization into an optical fiber via said optical coupler by combining said signals communicated to said optical coupler.