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
Exhaust system of engine
Parallel execution of trellis-based methods
Press-molding mold, and press-molding method
Universal dental X-ray sensor holder
Interface mechanism between a drape and a handle
System and method for facilitating and monitoring provisioning of wireless devices
Method and apparatus for issuing rights in a digital rights management system
  Randomly Featured Patents
Pulsating orthodontic appliance
Control system for direct injection spark ignition internal combustion engine
System and method for improved harmonic imaging
Method and apparatus for measuring concentration of matter in liquid by using microwaves
Soybean cultivar S07-03JR108674
Sheath for wound closure caused by a medical tubular device
Ultrasonic medical device operating in a transverse mode
Belt conveyor
Process for reproducing radiation image using stimulable phosphor sheet having one-dimensionally extended partitions
Infection-resistant materials and method of making same through use of sulfonamides