Resources Contact Us Home
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
Case of electronic device having antenna pattern embedded therein and mold and method for manufacturing the same
Navigational cube for matching vendor offerings to service provider requirements
Accessing device via communication protocol selection
Control device with adjusting pulse width modulation function and the backlight module thereof
Low drop-out regulator providing constant current and maximum voltage limit
Systems and methods for sensing external magnetic fields in implantable medical devices
Selection of hash lookup keys for efficient retrieval
  Randomly Featured Patents
Method and apparatus for early diagnosis of Alzheimer's using non-invasive eye tomography by Teraherts
Method of erecting drop scaffolding, a drop scaffolding structure, and a scaffold coupling therefor
Muscarinic acetylcholine receptor antagonists
Strain relieved leading-in connection for signal cables with twisted wire pairs
Synthesis of 10-hydroxymethyl-9-anthraldehyde
Universal drag handle
Randomized modular reduction method and hardware therefor
Printer used for a television receiver
Insulating layer planarizing method for semiconductor device using mutually engaged insulating layers to improve strength and thermal deformation
Image forming apparatus and process cartridge