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SEMICONDUCTOR LASER, OPTICAL EMISSION COMPONENT, OPTICAL LINE TERMINAL AND OPTICAL NETWORK UNIT
SEMICONDUCTOR LASER, OPTICAL EMISSION COMPONENT, OPTICAL LINE TERMINAL AND OPTICAL NETWORK UNIT
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机译:半导体激光器,光发射元件,光线终端和光网络单元
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摘要
Embodiments of this application provide a semiconductor laser, an optical transmitter component, an optical line terminal, and an optical network unit. The semiconductor laser includes a substrate, and a lower waveguide layer, a lower confining layer, a central layer, an upper confining layer, a grating layer, an upper waveguide layer and an electrode layer that are sequentially formed on the substrate. The upper confining layer, the central layer and the lower confining layer in a filtering region form a core layer of the filtering region. The grating layer in the filtering region includes a slanted grating. In this application, a modulation chirp and dispersion of a transmitted optical pulse can be reduced.
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