Multi-channel optical device

摘要

The multi-channel optical device includes a demultiplexer in a laser cavity. The demultiplexer is configured to demultiplex a multi-channel light beam into a plurality of channels. The demultiplexer limits the wavelengths of the channels that are output from the laser cavity. The gain element includes quantum dots as the gain medium.

主权项

1. A multi-channel optical device, comprising:
a quantum dot gain medium in a laser cavity, the quantum dot gain medium being configured to produce a light beam, the quantum dot gain medium including quantum dots, and the quantum dots in the gain medium having a variety of different radii; and a demultiplexer in the laser cavity, the demultiplexer configured to demultiplex the light beam into a plurality of channels that are each at a different wavelength, the demultiplexer selecting wavelengths of the channels, and the radii of the quantum dots being selected such that the wavelengths selected by the demultiplexer are each associated with one of the quantum dot radii.