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Multistage optical amplifier having a fiber-based amplifier stage and a planar waveguide-based amplifier stage
Multistage optical amplifier having a fiber-based amplifier stage and a planar waveguide-based amplifier stage
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机译:具有基于光纤的放大器级和基于平面波导的放大器级的多级光放大器
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摘要
A multistage optical amplifier (200) includes a fiber amplifier stage (210) having an active optical fiber (218) for imparting gain to an optical signal propagating therethrough and a coupler (220) supplying pump energy to the optical fiber (218). A planar waveguide amplifier stage (240) is optically coupled to the fiber amplifier stage (210). The waveguide amplifier (230) including a substrate, an active planar waveguide formed on the substrate for imparting gain to an optical signal propagating therethrough, and at least one waveguide coupler formed on the substrate for coupling pump power to the active planar waveguide.
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