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Guided wave optical control manner and the optical waveguide component null by the optical waveguide type deflecting system and its optical waveguide type
Guided wave optical control manner and the optical waveguide component null by the optical waveguide type deflecting system and its optical waveguide type
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机译:光波导型偏转系统的导波光控制方式及光波导成分为零的光波导型
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摘要
PURPOSE: To obtain an optical waveguide type deflector which varies the luminous flux width of waveguide light propagated in an optical waveguide layer by using a reflection part composed of simple constitution. ;CONSTITUTION: An end surface provided on the end of a waveguide layer 2 is tapered surface 1 which is not perpendicular to the waveguide layer 2 and the inclination (taper angle ϕ) of the tapered surface 1 is continuously varied in the tapered surface in parallel to the waveguide 2 and perpendicularly to the tapering direction. The advantage of high deflection efficiency is obtained since deflection by the tapered structure in the optical path propagation direction in a layer having an equivalent refractive index distribution is used in principle, and the element is miniaturized and simplified as compared with a conventional luminous flux width control method by an expander or compressor consisting of plural curved surface having positive power and negative power since a function which controls the width of the luminous flux is provided, as well.;COPYRIGHT: (C)1993,JPO&Japio
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