Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Optical amplification apparatus










Image Number 15 for United States Patent #6256141.

An optical amplification apparatus for adjusting optical power of wavelength-multiplexed signal light at respective wavelengths and for adjusting the optical output power at the respective wavelengths and a deviation of the optical output power between the wavelengths. An optical power adjusting unit for receiving inputted light having signal light at a plurality of different wavelengths (.lambda..sub.1, .lambda..sub.2, .lambda..sub.3, . . . , .lambda..sub.N) multiplexed thereon, amplifying or attenuating light at least one wavelength included in the received light independently of light at different wavelengths from the wavelength of the light, is provided before or after an optical amplifier unit for amplifying the light having the signal light at the plurality of different wavelengths multiplexed thereon. Further, a control unit is provided for controlling the gain of amplification or attenuation performed by the optical power adjusting unit and the gain of amplification performed by the optical amplifier unit, respectively.








 
 
  Recently Added Patents
Traffic signal mapping and detection
Method and system for dynamic storage tiering using allocate-on-write snapshots
(4934
Polarity switching member of dot inversion system
Maintenance guidance display device, maintenance guidance display method, and maintenance guidance display program
Stowable pet leash and collar
Use of tris(hydroxymethyl) aminomethane for the stabilization of peptides, polypeptides and proteins
  Randomly Featured Patents
Crystalline p-hydroxyampicillin and salts thereof
Combiner training and evaluation with random data partition
Multistage vane type rotary compressor
Method of controlling operation of injection molding system
Cord reel license-plate holder
Apparatus and method for dispensing fibers into cementitious materials
Pedestal type electro-heated container
Thermoplastic traffic paint
Trading system for fixed-value contracts
Insect control pouch