Lee, Mann, Smith, McWilliams Sweeney & Ohlson
Optical amplifier gain control
An optical amplifier comprises a pumped doped fiber with a power measurement circuit for measuring the input and output power of the amplifier. Automatic gain control is implemented, and the calculation of output power for the AGC loop takes into consideration the temperature provided by a temperature measurement device. This enables a flatter gain response to be achieved over varying input power, which enables an increase in the dynamic range of the amplifier and thereby a possible increase in system capacity of a WDM system using the amplifier.
Nortel Networks Limited
H H H H H H H H
H01S H01S H01S H01S H01S H01S H01S H01S
additional additional inventional inventional inventional additional additional additional
Barrie Graeme A Jonathan
Flintham Henderson Drake