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	Optical integrated circuit
	HORI YOSHIKAZU; SERIZAWA AKIMOTO; MATSUI YASUSHI; UNO TOMOAKI; ODANI JIYUN; YAMAMOTO HIROAKI
	1988-09-26
著作权人	MATSUSHITA ELECTRIC IND CO LTD
专利号	JP1988229406A
国家	日本
文献子类	发明申请
其他题名	Optical integrated circuit
英文摘要	PURPOSE:To emit a complete parallel beam out by structuring part of a two-dimensional optical waveguide formed on a plane substrate so that plural single- mode three-dimensional optical waveguides where light is confined laterally adjoin one another at constant intervals, and coupling the respective single-mode optical waveguides optically. CONSTITUTION:Projection light from a semiconductor laser 6 is guided into a waveguide layer 3 by end surface coupling and propagated while spreading. The light is converted by a Fresnel lens 4 made of SiN4 into nearly collimated light, which is coupled with plural single-mode waveguides made of SiN5. The direction of the light propagated in the single-mode waveguide part 5 is completely equal to the stripes of respective single-mode waveguides, so the light is propagated as complete collimated light. Further, periodic variation in effective refractive index is formed on the surface of the single-mode waveguide 5 made of a loading layer to an about 300Angstrom depth, and consequently the propagated light is emitted out. The emitted light is converged by an optical lens nearly to a diffraction limit and a complete parallel beam is formed.
公开日期	1988-09-26
申请日期	1987-03-18
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/83743]
专题	半导体激光器专利数据库
作者单位	MATSUSHITA ELECTRIC IND CO LTD
推荐引用方式 GB/T 7714	HORI YOSHIKAZU,SERIZAWA AKIMOTO,MATSUI YASUSHI,et al. Optical integrated circuit. JP1988229406A. 1988-09-26.

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