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	Integrated optical wavelength demultiplexer (IOWD)
	COLOMBINI ETTORE
	1981-09-15
著作权人	NORTHERN TELECOM LIMITED
专利号	CA1108903A
国家	加拿大
文献子类	授权发明
其他题名	Integrated optical wavelength demultiplexer (IOWD)
英文摘要	INTEGRATED OPTICAL WAVELENGTH DEMULTIPLEXER (IOWD) Abstract of the Disclosure An integrated optical wavelength demulti- plexer has deposited on a waveguide layer a pair of Luneburg lenses, the first for collimating light from an optical fiber, the second for focussing light at an array of photo- detectors formed under the waveguide layer. Between the lenses is the dispersive element, a thin-film prism of a highly dispersive low-loss material such as arsenic trisulfide. A known integrated optical demultiplexer, which uses a chirped diffraction grating to spatially disperse (rather than angularly disperse) the optical wavelengths, would suffer a greater insertion loss particularly for wavelengths coupled out at a later point in the grating. Demultiplexing with a thin-film prism should also result in the capability to handle a larger number of channels, for a given channel isolation and substrate area. - i -
公开日期	1981-09-15
申请日期	1979-12-17
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/35725]
专题	半导体激光器专利数据库
作者单位	NORTHERN TELECOM LIMITED
推荐引用方式 GB/T 7714	COLOMBINI ETTORE. Integrated optical wavelength demultiplexer (IOWD). CA1108903A. 1981-09-15.

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