Distributed feedback laser diode

摘要

A distributed feedback laser diode includes a substrate, an active layer located above and supported by the substrate, and a diffraction grating diffracting light generated in the active layer. The diffraction grating includes features and each feature includes dots. Each of the dots has a length less than 2.5 μm.

主权项

1. A distributed feedback laser diode comprising:
a substrate; an active layer located above and supported by the substrate; and a diffraction grating comprising a plurality of spaced-apart features and diffracting light generated in the active layer, wherein
each of the plurality of features includes a plurality of dots,each of the dots has a length of not less than 2.5 μm, andeach of the dots in a respective feature contacts at least one other dot of the feature.