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APPARATUS FOR COUPLING LASER AND OPTICAL FIBER, AND OPTICAL SIGNAL TRANSMISSION SYSTEM AND TRANSMISSION METHOD
APPARATUS FOR COUPLING LASER AND OPTICAL FIBER, AND OPTICAL SIGNAL TRANSMISSION SYSTEM AND TRANSMISSION METHOD
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机译:激光和光纤耦合的装置,光信号传输系统和传输方法
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摘要
The present invention discloses an apparatus for coupling a laser and an optical fiber and an optical signal transmission system and transmission method. An coupling apparatus is disposed between a laser and an optical fiber, where the coupling apparatus includes an optical signal transmission part whose inner refractive index changes gradually, where a refractive index becomes higher at a position closer to a principal axis of the optical signal transmission part; and the optical signal transmission part may be configured to shape an optical signal incident from the laser (including optical signal convergence or divergence), so that a mode field radius of the adjusted optical signal matches a core radius of the optical fiber, and the adjusted optical signal can be coupled into the optical fiber in high efficiency.
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