Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Optical FM source based on intra-cavity phase and amplitude modulation in lasers










Image Number 17 for United States Patent #7907648.

A laser is disclosed including a gain section having a distributed feedback grating imposed thereon. An absorption section is embedded in the gain section such that the first and second portions of the distributed feedback grating extend on either side of the electro-absorption section. A controller imposes a substantially DC bias signal on the first and second gain electrodes and imposes a modulation signal encoding digital data on the modulation electrode to generate a frequency modulated signal. In some embodiments, the first and second portions are biased above the lasing threshold and the absorption section is modulated below the lasing threshold to modulate loss in the absorption section.








 
 
  Recently Added Patents
Image sensor with improved color crosstalk
Method and apparatus for generating images using a color field sequential display
Light powered hearing aid
System and method of interfacing co-processors and input/output devices via a main memory system
Carbonate and carbamate modified forms of glucocorticoids in combination with .beta..sub.2 adrenergic agonists
Header rail for a shower screen or the like
Antenna for an automobile
  Randomly Featured Patents
Method of inhibiting complement activation with human anti-factor C3 antibodies and use thereof
Semiconductor device
Assembly for fastening horizontal support frames to upright supports of a rack
Personal computer having a security function, a method of implementing the security function, and methods of installing and detaching a security device to/from a computer
Method and system for in-place interaction with contained objects
Nestable fluid coupler
Stacked piezoelectric element, manufacturing method thereof and vibration wave driving apparatus
Programmable logic integrated circuit devices with low voltage differential signaling capabilities
Seat of a vehicle
Automatic bag system for supermarket check-out counter