Back to results
US 2002/0159490 A1Published application
Tunable multi-frequency vertical cavity surface emitting laser
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorFrancis A. Karwacki
Life of this patent
Estimating the term…
Abstract
A tunable Vertical Cavity Surface Emitting Laser (VCSEL) is disclosed that produces N frequencies of visible light. The VCSEL comprises an array of quantum wells (QWMs) which replaces one of the normally present Distributive Bragg Reflectors (DBR) at one end of a laser cavity of the VCSEL. These N independent QWMs produce N independent frequency in the laser cavity of the VCSEL device.
Claims15
A VCSEL having a quantum well mirror (QWM) comprising:
- (a) a first Disturbed Bragg Reflector (DBR) disposed on a substrate;
- (b) a first electrode disposed on said DBR;
- (c) a tuning region composed of quantum wells disposed on said first electrode;
- and
- (d) a second electrode disposed on said tuning region.
2 more elements
A VCSEL comprising:
- (a) a first electrode having a surface;
- (b) an array of quantum well mirrors (QWMs) with a tuning region disposed on said surface of said first electrode, each of said quantum well mirrors having separate electrodes;
- (c) a second electrode disposed on said first turning region;
- (d) an active region disposed on said second electrode;
- and
- (e) a DBR disposed on said active region.
3 more elements
Dependencies are inferred from the claim text.