Optical amplifier and optical communication system with optical

Optical: systems and elements – Optical amplifier – Optical fiber

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359134, 359160, 385 4, 385 9, H04B 1000, H04B 1016, G02B 626

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active

055350500

ABSTRACT:
An optical transmission system transmits an optical signal. The optical transmission system may include an optical amplifier. The optical amplifier amplifies a received optical signal. A pumping light source outputs a pumping light beam and monitor information or supervisory information. This optical amplifier is adapted to amplify the received optical signal by propagating the received optical signal. An optical fiber which may be doped with a rare-earth element. An optical coupler couples the received optical signal and a first pumping light beam to the input of the optical fiber. Through propagation of the signal through the optical fiber, the received optical signal is amplified.

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