Resources Contact Us Home
Method of wavelength alignment for a wavelength division multiplexed passive optical network

Image Number 7 for United States Patent #8126332.

Described is a method for controlling the wavelength of a laser in a wavelength division multiplexed (WDM) system. The method includes generating broadband light having a dithered optical power and a wavelength spectrum that includes a plurality of WDM wavelengths. The broadband light is spectrally filtered to generate a spectrally-sliced optical signal having a wavelength spectrum that includes one of the WDM wavelengths. The spectrally-sliced optical signal is injected into a laser and a dithered optical power of the laser is determined. A parameter of the laser is controlled in response to the determination of the dithered optical power to thereby align a wavelength of the laser to the wavelength spectrum of the spectrally-sliced optical signal.

  Recently Added Patents
Multiplanar image displays and media formatted to provide 3D imagery without 3D glasses
Systems and methods of using dynamic data for wear leveling in solid-state devices
Strategic planning management
Methods, systems, and computer-readable media for providing an event alert
Architectural panel with Tarwe and grass
  Randomly Featured Patents
Socket for semiconductor device
Method for providing confidentiality to a facsimile transmission having information associated with a first page of the transmission printed on a first enclosure sheet
Optical article comprising a multilayer anti-reflective coating and method of production thereof
Optical circuit and method for measuring monitor characteristic
Distance measuring device and projector including same distance measuring device
Safe and automatic method for preparation of coke for removal from a coke vessel
Method and apparatus for recording digital signal and drum unit for recording FM audio signal and digital signal
Reciprocating floor construction
Polyoxymethylene having improved acid stability
System for biological purification of water containing organic materials and derivative products