| 摘要 |
PROBLEM TO BE SOLVED: To provide 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 achieving a stable operation. SOLUTION: In the light source apparatus (3), light amplified in an optical amplifier fiber (53) is emitted to the outside of the apparatus through an optical output fiber (55). At this time, part of Raman scattered light, generated in the optical output fiber (55), propagates toward a pumping light source (42) through the optical amplifier fiber (53). An optical component (91) 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 (42) 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 (3) can be stably operated. COPYRIGHT: (C)2009,JPO&INPIT |
