Optical amplification device and optical repeater
An optical repeater and optical amplification technology, applied in the coupling of optical waveguides, electromagnetic wave transmission systems, electrical components, etc., can solve the problem that the output power of the second-stage amplifier cannot be effectively improved, the pump optical power is low, and the signal optical gain Low problems, to achieve the effect of increasing gain, reducing cost, and increasing output power
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[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0026] In order to increase the gain of signal light, an embodiment of the present invention provides an optical amplifying device, such as figure 2 As shown, the optical amplifier device includes an optical coupler 11, the optical coupler 11 is connected with a first erbium-doped fiber 12, the first erbium-doped fiber 12 is connected with a multiplexer 13, and the multiplexer 13 is connected with a second erbium-doped fiber. Erbium fibe...
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