Optical fiber, optical fiber module, and raman amplifier
A Raman amplifier and optical fiber module technology, which is applied in clad optical fiber, optical waveguide light guide, optics, etc., can solve problems such as hindering high-speed optical communication and reducing the quality of signal optical communication
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Problems solved by technology
 Embodiments of the present invention will be described below with reference to the drawings. figure 1 is a block diagram showing the structure of the Raman amplifier of the embodiment of the present invention. This Raman amplifier 1 is a centralized Raman amplifier and has an optical fiber module 2 . The signal optical input terminal Tin is connected to the optical fiber module 2 through the optical connector 3a and the isolator 4a. The optical fiber module 2 connects the amplified signal light to the output terminal Tout through the isolator 4b and the optical connector 3b. The optical connector 3 b is connected to the excitation laser 5 , and outputs the excitation light from the excitation laser 5 to the side of the optical fiber module 2 .
 The optical fiber module 2 has an amplifying optical fiber 2a, which will be described later, wound on a bobbin, and between the single-mode optical fiber (SMF) optical fiber 2b on the side of each isolator 4a, 4b and t...
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