US 2025/0062590 A1 · NONLINEAR PHOTONIC CHIP INTEGRATED WITH A SEMICONDUCTOR LASER

Abstract

A semiconductor laser and a photonic nonlinear circuit chip are integrated together. The nonlinear circuit chip may include a nonlinear waveguide configured or controlled to enable sum-frequency generation, difference-frequency generation, second-harmonic generation, parametric amplification, or other nonlinear processes. Coupling between the semiconductor laser and the nonlinear circuit may be optimized by mode-matching, while back-reflections are minimized by diverting the reflections so that optical isolators are not needed. The integration of the semiconductor laser and the nonlinear photonic circuit chip enables nonlinear optical processing using a compact and scalable platform in a flexible manner that is compatible with different types of semiconductor lasers and different operation regimes. An additional input is provided so users can input an optical signal into the photonic chip for processing therein. In some examples, the photonic chip is configured with pump resonators, such as racetrack resonators. Method and device examples are described herein.

Claims27

Dependent claims

An integrated optical device, comprising:

a semiconductor laser;
and
a photonic chip integrated with the semiconductor laser, the photonic chip comprising:
a first input component configured to receive a first optical signal from the semiconductor laser;
a second input component configured to receive a second optical signal;
an optical multiplexer configured to combine at least a portion of the first optical signal and at least a portion the second optical signal to provide a combined signal with combined optical waves;
and
a nonlinear waveguide configured to receive the combined optical waves and cause the combined optical waves to interact with one another to produce at least one output optical wave, wherein the interaction comprises at least one nonlinear process.

5 more elements

Dependencies are inferred from the claim text.

Nonlinear photonic chip integrated with a semiconductor laser

Life of this patent

Nonlinear photonic chip integrated with a semiconductor laser

Life of this patent

Abstract

Claims27