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
Authenticating messages sent between a vehicle and a central facility
Mirror drift compensation in an optical circuit switch
Drive coil, measurement probe comprising the drive coil and methods utilizing the measurement probe
Portable electronic device housing including hinge
Systems and methods for tracking power modulation
Fuel cell module
Insulated container sleeve
  Randomly Featured Patents
Motorcycle
Carrying case for tools and accessories
Compound semiconductor light-emitting device having pn-junction type hetero structure and forming method thereof
Method and apparatus for extracting selected materials
Assembly of clip-on attachment spectacles
Blade scabbard
Modulator for analog applications
Method and apparatus for measuring the amount of entrained gases in a liquid sample
Sputum specimen collecting device
Portable multimedia terminal