Patent ID: 11862934
Assignee: AUTOMOTIVE COALITION FOR TRAFFIC SAFETY, INC.
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 0:
1. A widely tunable, single mode emission semiconductor laser comprising:
a semiconductor substrate;
a substrate heater for heating the semiconductor substrate;
first and second linearly-aligned ridge waveguides formed on the semiconductor substrate, the first and second linearly-aligned ridge waveguides being separated by a gap so as to form first and second coupled cavities;
first and second ridge waveguide heaters for heating the first and second linearly-aligned ridge waveguides, respectively; and
first and second p-contacts formed on the first and second linearly-aligned ridge waveguides, respectively, and first and second n-contacts in electrical communication with the first and second linearly-aligned ridge waveguides, respectively, for applying first and second laser currents to the first and second linearly-aligned ridge waveguides, respectively.