Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Surface-emitting type semiconductor laser, and method for manufacturing the same, optical switch, and optical branching ratio variable element










Image Number 7 for United States Patent #7418014.

A surface-emitting type semiconductor laser includes a substrate, a first distributed Bragg reflection type mirror formed above the substrate, an active layer formed above the first mirror, a second distributed Bragg reflection type mirror formed above the active layer, and an insulation layer having an opening section that is formed in one of the first and second mirrors, wherein light generated from the active layer is emitted as a lower order mode laser beam lower order modeor a higher order mode laser beamhigher order mode, and the first mirror is formed with a number of pairs greater than the number of pairs of the second mirror such that the lower order mode laser beamlower order mode can be emitted in an upward direction of the substrate, and the opening section in the insulation layer is formed to have a size that enables the higher order mode laser beamhigher order mode to be emitted in a downward direction of the substrate.








 
 
  Recently Added Patents
Oscillator circuit which compensates for external voltage supply, temperature and process
Transmission apparatus, receiving apparatus, method, and storage medium
Methods and systems for automated backups and recovery on multi-os platforms using controller-based snapshots
Control apparatus for autonomous operating vehicle
Method and receiver for jointly decoding received communication signals using maximum likelihood detection
Method and system for network configuration for virtual machines
Geo-coding images
  Randomly Featured Patents
Hazardous gas abatement method
Electrophoretic display and novel process for its manufacture
Organic light-emitting display apparatus sealed with a sealant containing a filler
Textile color analyzer calibration
Rapid thermal processor for heating a substrate
Method and apparatus for discovering network topology
Method of assigning priority for controlling bit rate of bitstream, method of controlling bit rate of bitstream, video decoding method, and apparatus using the same
Syringe case
Bottle cap
Protective device for a driveshaft having radial supporting means for the protective cone