Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Lubricant supplying device, process cartridge, and image forming apparatus
Electrode tab for secondary battery and secondary battery using the same
Field device for determining or monitoring a physical or chemical process variable
Moving picture decoding device and moving picture decoding method
Methods of establishing virtual circuits and of providing a virtual private network service through a shared network, and provider edge device for such network
Method of and apparatus for laser drilling holes with improved taper
Method and apparatus for decoding/encoding a video signal with inter-view reference picture list construction
  Randomly Featured Patents
Fire extinguishing apparatus for large oil storage reservoirs
High pressure downspout
Counterelectrode for smart window and smart window
Roller thrust bearing
Indicia display device
System and method for management of hair and personal hygiene
Rice promoters
Apparatus for the external calibration (sizing) of tubular elements
Arrangement for sheet holder systems on storage drums in turning devices of sheet-fed printing machines
Method and apparatus for predicting failure of an eletrostatic chuck