Resources Contact Us Home
Vertical cavity surface emitting laser

Image Number 16 for United States Patent #8077752.

A Vertical Cavity Surface Emitting Laser (VCSEL) capable of providing high output of fundamental transverse mode while preventing oscillation of high-order transverse mode is provided. The VCSEL includes a semiconductor layer including an active layer and a current confinement layer, and a transverse mode adjustment section formed on the semiconductor layer. The current confinement layer has a current injection region and a current confinement region. The transverse mode adjustment section has a high reflectance area and a low reflectance area. The high reflectance area is formed in a region including a first opposed region opposing to a center point of the current injection region. A center point of the high reflectance area is arranged in a region different from the first opposed region. The low reflectance area is formed in a region where the high reflectance area is not formed, in an opposed region opposing to the current injection region.

  Recently Added Patents
Electrical stimulation lead, system, and method
Display fixture for highlighting products
Electrical conduit containing a fire-resisting thermoplastic composition
Light modulators and optical apparatuses including the same
Device, information processing method, and computer-readable storage medium
System and method for controlling device location determination
Methods of prognosing a rheumatoid arthritis remission phenotype
  Randomly Featured Patents
Binocular device and method utilizing monocular devices
Scroll type compressor having a spacer coupling the fixed scroll to the frames
Replication in a network environment
Method for incremental electro-processing of large areas
System for spatially transforming images
Tension leg joint
Backscatter inspection portal
Dispensing containers
Holder for filter bags for preparing tea and the like
Mounting system and method for mounting an air conditioner