Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Interleaved wavelengths multi/demultiplexer with multiple-input-ports and multiple-output-ports for wavelength add/drop WDM systems










Image Number 2 for United States Patent #6181849.

The present claimed invention improves on the conventional comb and multiple router approach by making multiple use of a single router by using interleaved groups of wavelengths that enter through different entrance ports and exit through different groups of exit ports of the same router. This permits better separation (lower crosstalk) between adjacent channels, greatly reduced temperature sensitivity, small physical size and lower cost. With these improvements, a large number of wavelength add/drop sites may be cascaded in WAD/WDM systems.








 
 
  Recently Added Patents
Encoding method, decoding method, encoding device, decoding device, program, and recording medium
Apparatus and methods for inventory, sale, and delivery of digitally transferable goods
Multifunction switch for vehicle having lighting module
System and method for optimizing teams
Protecting information written to recording medium
Controlling a video window position relative to a video camera position
System and methods for weak authentication data reinforcement
  Randomly Featured Patents
Gaming system, a sound controller, and a method of gaming
Method for driving a nonvolatile semiconductor memory device
Polymide for high-temperature adhesive
Flicker reduction apparatus
Polymerization of olefins
Ear tag for animals
Combined cabinet and speaker housing
Device for conditioning and distributing several fluids, comprising at least two pumps
Monomolecular carbon-based film for forming lubricious surface on aircraft parts
System and method for measuring reflectance of object