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
Requirements model comparative analysis method for effort estimation in customizing a network monitoring and control system
Apparatus and method for scrolling a screen of a portable terminal having a touch screen
Combining seismic data from sensors to attenuate noise
Placental tissue grafts
Data consumption framework for semantic objects
Image forming apparatus having exhaust fan
Metal foil laminate, substrate for mounting LED, and light source device
  Randomly Featured Patents
Billet centering and control guide for the entry guide of a press-piercing mill
Speech detection apparatus in which standard pattern is adopted in accordance with speech mode
Heddle frame with detachable corner connections
Polyhydroxyalkylpyrazine derivatives and their preparation and medicines containing them
Method of analyzing an aqueous liquid for hexacyanoferrates
Display board system
Use of plasma activated NF.sub.3 to clean solder bumps on a device
Automotive, front and side brake / running/ turn signal light
System and/or method for reading, measuring and/or controlling intensity of light emitted from an LED
Nestable case