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
Rain barrel
Method and composition for hyperthermally treating cells
Video processing system and device with encoding and decoding modes and method for use therewith
Configurable memory controller/memory module communication system
Method and apparatus for transmitting and receiving a signal in a communication system
Representing polarized light in computer models
Method and system for reduction of decoding complexity in a communication system
  Randomly Featured Patents
Attitude determination method and system
Cabinet for electronic data processing equipment
Brake shaft bearings
Method for using the second homotopy group in assessing the similarity of sets of data
Omnidirectional response cable switch
Mask pattern of a semiconductor device and a method of manufacturing fine patterns using the same
Method for producing a continuous thermoplastic coating and articles constructed therefrom
Grip for a container
Apparatus for direct shear stress testing of sample