Optical: systems and elements – Optical amplifier – Optical fiber
Reexamination Certificate
2008-05-27
2011-12-20
Bolda, Eric (Department: 3663)
Optical: systems and elements
Optical amplifier
Optical fiber
C359S337000, C359S337200, C359S341300
Reexamination Certificate
active
08081376
ABSTRACT:
The invention relates to a light source apparatus having a structure for effectively suppressing a negative effect due to a nonlinear effect generated in propagation of an amplifying light, and realizing a stable operation. In the light source apparatus, light amplified in an optical amplifier fiber is emitted to the outside of the apparatus through an optical output fiber whose one end is connected to an output connecter. At this time, a part of Raman scattered light, generated in the optical output fiber, propagates toward an pumping light source through the optical amplifier fiber from the optical output fiber. An optical component having an insertion loss spectrum that attenuates the Raman scattered light but allows pumping light or light to be amplified to transmit therethrough, is provided on a propagation path of the Raman scattered light, due to the light component, the intensity of the Roman scattered light reaching the pumping light source is effectively reduced. As a result, a negative effect due to a nonlinear effect generated in propagation of light to be amplified can be effectively suppressed, and the light source apparatus can be stably operated.
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Kakui Motoki
Tamaoki Shinobu
Bolda Eric
Ma Christopher
Sartori Michael A.
Sumitomo Electric Industries Ltd.
Venable LLP
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