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US 12,184,038 B2Granted
Laser apparatus
AssigneeFurukawa Electric Co., Ltd.
InventorsYoshiki Nomura, Shunichi Matsushita
Life of this patent
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Abstract
A laser apparatus includes: one or more laser diodes and two or more optical combiners. Further, output sides of the one or more laser diodes are connected to an input side of one optical combiner among the two or more optical combiners, and an output side of the one optical combiner is connected to an input side of an optical combiner other than the one optical combiner.
Claims9
A laser apparatus comprising:
- two or more laser diodes and two or more optical combiners, wherein
- output sides of the two or more laser diodes are directly connected to respective input sides of optical combiners different from each other, and
- an output side of one optical combiner is connected to an input side of an optical combiner other than the one optical combiner.
A laser apparatus comprising:
- one or more laser diodes, two or more optical combiners and an asymmetric tap coupler, wherein
- output sides of the one or more laser diodes are connected to an input side of one optical combiner among the two or more optical combiners,
- an output side of the one optical combiner is connected to an input side of an optical combiner other than the one optical combiner, and
- optical fibers used in input ports and output ports of the two or more optical combiners are multi-mode opticl fibers,
- wherein flatness of laser light output from the optical combiner is improved compared with flatness of laser light when the optical combiner does nto exist,
- an inptu side of the saymmetric tap coupler is connected to an output side of one of the two or more optical combiners, which is arranged in a rearmost stage,
- a higher-order mode light excited by the optical combiner is removed by the asymmetric tap coupler, and
- a ring beam is formed from the position of the tap port.
5 more elements
Dependencies are inferred from the claim text.