Highly efficient configuration of reflective fiber-optic active star couplers |
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| Authors: | J W Liaw Y K Chen |
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| Institution: |
a Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan, Republic of China
b Applied Research Laboratory, Room 3103, Telecommunication Laboratories, Ministry of Transportation and Communications, Chung-Li, Taiwan, Republic of China |
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| Abstract: | In this paper, we present a highly efficient configuration by using the basic 4 × 4 active star coupler and the 2 × 2 3-dB fiber coupler as building blocks to construct larger reflective active N star couplers with the fewest erbium-doped fibers (EDFs) and pump lasers. This configuration saves about half the fibers and components used with the transmissive N × N active star. Moreover, this configuration provides advantages such as very low cost, high gain, and pump-wavelength independence for system applications. |
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