VCSEL with anisotropic curved mirror
AssigneeSony Group Corporation
InventorsJared Alexander Kearns, Tatsushi Hamaguchi, Kentaro Hayashi, Rintaro Koda
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Abstract
The present disclosure provides new and innovative VCSEL devices and systems. In an example, a VCSEL device comprises a cavity mirror with a curved mirror surface of a VCSEL and a radius of curvature (ROC) of the curved mirror surface that is anisotropic, wherein the ROC comprises four directions, the four directions being +x, +y, −x, −y, the ROC in at least one direction is in a range greater than a cavity length of the VCSEL and less than a predefined ROC value for a standard beam width (ROCUL), and the ROC in at least one of the other directions is outside the range.
Claims20
A vertical cavity surface emitting laser (VCSEL) device comprising:
- a cavity mirror having a curved mirror surface;
- and
- a radius of curvature (ROC) of the curved mirror surface that is anisotropic, wherein
- the ROC comprises four directions, the four directions being +x, +y, −x, −y,
- the ROC in two directions is in a range greater than a cavity length of the VCSEL and less than a predefined ROC value for a standard beam width (ROCUL), and
- the ROC in two other directions is outside the range and is a value which is negative.
A VCSEL cavity mirror comprising:
- a curved mirror surface of a VCSEL;
- and
- a radius of curvature (ROC) of the curved mirror surface that is anisotropic, wherein
- the ROC comprises four directions, the four directions being +x, +y, −x, −y,
- the ROC in two directions is in a range greater than a cavity length of the VCSEL and less than a predefined ROC value for a standard beam width (ROCUL), and
- the ROC in two other directions is outside the range and is a value which is negative.
Dependencies are inferred from the claim text.