WAVEGUIDE STRUCTURE FOR MID-IR MULTIWAVELENGTH CONCATENATED DISTRIBUTED-FEEDBACK LASER WITH AN ACTIVE CORE MADE OF CASCADED STAGES

摘要

Concatenated distributed feedback lasers having novel waveguides are disclosed. The waveguides allow for coupling of the laser beam between active and passive waveguide structures and improved device design and output efficiency. Methods of making along with methods of using such devices are also disclosed.

主权项

1. A waveguide structure comprising:
a. an active semiconductor optical waveguide made of an optical gain material; b. a bridge; and c. a passive optical waveguide; wherein: the bridge is spatially located between the active semiconductor optical waveguide and the passive optical waveguide; and the active semiconductor optical waveguide, the bridge, and the passive optical waveguide are not physically connected via an optical waveguide material.