Resources Contact Us Home
Optical amplification apparatus

Image Number 13 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
Compatibility check
Conductor-mixed active electrode material, electrode structure, rechargeable battery, and manufacturing method of conductor-mixed active electrode material
Silicone hydrogel, lens for eye and contact lens
Catalysts for polyurethane coating compounds
Apparatus and method of managing radio bearer in wireless communication system
Method for exchanging data concerning an electronic transaction
All-in-one information handling system
  Randomly Featured Patents
Oximinophosphoric acid derivatives, and their use for controlling pests
Plasma display panel having capability of providing priming discharge between opposing electrodes
Device for the reconstruction of an angular zone of a tooth
Facsimile electrostatic copier
Silicidation process with etch stop
Ground stabilizing equipment
Method and system of capturing and reading consumer-oriented responses through consumer-appended bar codes
Enzymatic peracid generation for use in oral care products
Upstream bandwidth management methods and apparatus
3-benzylidenecamphor-substituted diorganopolysiloxanes