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Method of manufacturing an external cavity semiconductor laser, external cavity semiconductor laser, and wavelength multiplex transmission system
Method of manufacturing an external cavity semiconductor laser, external cavity semiconductor laser, and wavelength multiplex transmission system
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机译：制造外腔半导体激光器的方法，外腔半导体激光器和波长多路传输系统
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摘要
An external cavity semiconductor laser comprises a grating fiber and a semiconductor optical amplification element. The grating fiber has a Bragg grating and an optical waveguide. The Bragg grating has a frequency fFG and exhibits a maximum reflectivity thereat. The Bragg grating is optically coupled to the optical waveguide. In the external cavity semiconductor laser. The grating fiber is determined such that an oscillation frequency fLD satisfies; ;According to the structure of the external cavity semiconductor laser, the occurrence of mode hopping is reduced within a frequency range defined by expression (1).
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