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SOLID PHOTONIC BAND GAP FIBER, AND FIBER MODULE, FIBER AMP, AND FIBER LASER EMPLOYING SOLID PHOTONIC BAND GAP FIBER
SOLID PHOTONIC BAND GAP FIBER, AND FIBER MODULE, FIBER AMP, AND FIBER LASER EMPLOYING SOLID PHOTONIC BAND GAP FIBER
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机译：固态光子带隙光纤，光纤模块，光纤放大器和使用固态光子带隙光纤的光纤激光器
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摘要
A solid photonic band gap fiber includes: a core area located at a central portion of a cross-section with respect to a longitudinal direction of the fiber, the core area being formed of a solid substance having a low refractive index; cladding areas having base portions formed of a solid substance having a low refractive index, the cladding areas surrounding the core area; and a plurality of fine high refractive index scatterers provided in the cladding areas, and disposed in a dispersed manner so as to surround the core area, the number of fine high refractive index scatterers being formed of a solid substance having a high refractive index, wherein in a state that the solid photonic band gap fiber is held at a predetermined bending radius, propagation in a high-order mode is suppressed by using a difference in a bending loss between a fundamental mode and the high-order mode, and only the fundamental mode is substantially propagated, the fundamental mode and the high-order mode being caused by bending.
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