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
Systems and methods for velocity profile based approach to point control
TPO compositions, articles, and methods of making the same
Economic filtering system for delivery of permission based, targeted, incentivized advertising
Basket for a dishwasher
Method and apparatus for communications
Efficient file system metadata scanning using scoped snapshots
RF amplifier with digital filter for polar transmitter
  Randomly Featured Patents
Antistatic resin composition
Electronic power-saving device
Mat for the transport of at least one object, a transfer device and a method for the transfer
Estimating capacitance effects in integrated circuits using congestion estimations
Methods for producing ligand arrays
Removable heating element for high temperature furnaces
Heat exchanger for analysis apparatus
Rolled film backing paper with cinch tabs
Method of manufacturing a finned heat sink
Method for fabricating SiGe-on-insulator (SGOI) and Ge-on-insulator (GOI) substrates