Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Dynamic controller for a multi-channel optical amplifier










Image Number 4 for United States Patent #6535330.

A dynamic controller for a multi-channel EDFA-type optical amplifier is provided that is capable of providing a substantially tilt-free output over a range of selectable gain set points. The dynamic controller includes a variable optical attenuator coupled between the two amplification coils of the EDFA amplifier, and a control circuit that instructs the attenuator of an amount that each channel should be attenuated to achieve a tilt-free output at a selected gain point. The controller further includes a gain controller and a tilt controller connected to the control circuit of the variable optical attenuator for providing signals indicative of an average amount of per channel attenuation and a relative amount of per channel attenuation necessary to achieve a selected gain set point while reducing or eliminating tilt, respectively.








 
 
  Recently Added Patents
Data latch circuit and electronic device
High-density fiber optic modules and module housings and related equipment
Dryer
Methods and devices for multiple-mode radio frequency synthesizers
Automated dynamic differential data processing
Optoelectronic semiconductor chip and method for manufacturing a contact structure for such a chip
RF power amplifier circuit with mismatch tolerance
  Randomly Featured Patents
Adaptive acquisition of multiple access codes
Translating field inductor for producing a directionally oriented flux within the stirring roller of a continuous caster for slabs
Headlight for a vehicle
Dispersion-compensating fiber having a high figure of merit
Hydraulic motor vehicle braking system with wheel slip control
Hydrocracking of heavy oils/fly ash slurries
Cellular and viral inactivation
Method of analyzing the texture of a surface and a carpet characterized by the method
Dehydrocyclodimerization process start-up procedure
Female urinal aid