Guided self-aligned laser structure with integral current blocking layer
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United States of America Patent
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Issued Date -
Dec 25, 2003
app pub date -
Oct 2, 2002
filing date -
Jun 22, 2002
priority date (Note) -
Abandoned
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Abstract
A self-aligned laser structure with an integral active and guiding layer is disclosed. It is comprised of a continuous active region and a current blocking region forming a lateral waveguide. The blocking region has an index of refraction n1 and a continuous guiding layer has an index of refraction n2, wherein n2 is greater than n1. The guiding layer and the blocking region is made of the same material. The blocking region has a real refractive index step to form a transverse optical mode, wherein the transverse laser mode is controlled by a change in doping level of the blocking region.
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