Optical: systems and elements – Optical amplifier – Correction of deleterious effects
Patent
1999-07-09
2000-08-15
Moskowitz, Nelson
Optical: systems and elements
Optical amplifier
Correction of deleterious effects
359161, 359341, 372 6, 372 34, H01S 300, H01S 3133, H04B 900, H04B 1028
Patent
active
061045268
ABSTRACT:
In the optical amplifier of the present invention, a part of signal light inputted to an input connector is branched out by an optical coupler, whereby its power is detected by a light-receiving device. According to the power of input signal light detected by the light-receiving device, the temperature of an amplification optical fiber is controlled by a temperature control section by way of a Peltier device. On the other hand, a part of the signal light outputted from an output connector is branched out by an optical coupler, whereby its power is detected by a light-receiving device. The power of pumping light supplied to the amplification optical fiber from an pumping light source 152 is controlled by an output control section 162 such that the power of output signal light detected by the light-receiving device becomes a predetermined target value.
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Moskowitz Nelson
Sumitomo Electric Industries Ltd.
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