Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Systems and methods for programming an RFID reader
Particle-loaded membrane for solid-phase-extraction and method for performing SALDI-MS analysis of an analyte
Pixel structure of organic light emitting device
Curved structural part made of composite material and a process for manufacturing such a part
Plasma panel based radiation detector
Visually tracking an object in real world using 2D appearance and multicue depth estimations
Automated difference recognition between speaking sounds and music
  Randomly Featured Patents
Substituted 4-aminoquinazoline derivatives and method of use
Rapid assembly casting system for slab gels
Speculums
Carbon nanotube hybrid photovoltaics
Brassiere with reinforced edges
Rotary electro-dynamic machine and armature winding thereof
Method for manufacturing a steering wheel
Dental appliance
Child's seat cushion for motor vehicles
Scroll pump with an electromagnetic drive mechanism