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	Mode coupling optical waveguide grating
	STRASSER, THOMAS A.
	1998-03-18
著作权人	LUCENT TECHNOLOGIES INC.
专利号	EP0829740A2
国家	欧洲专利局
文献子类	发明申请
其他题名	Mode coupling optical waveguide grating
英文摘要	Reflective mode coupling refractive index gratings are disclosed. The gratings can couple light of wavelength λi in a fundamental spatial mode of the waveguide (e.g., LP01) to a reflected higher order spatial mode (e.g., LP11), substantially without reflection of any light of wavelength λj ≠ λi in a spectral range Δλ ≲ 0.01 λi. The mode coupling gratings (MCGs) can find a variety of uses in optical waveguide systems. Exemplarily, an MCG can serve as a wavelength-dependent loss element with abrupt (e.g., ∼1 nm) spectral dependence. However, a chirped grating with or without strength modulation can yield an MCG having relatively wide spectral dependence, including variable loss over a relatively wide (e.g., ∼10 nm) spectral range. Both types of MCGs are advantageously used in, for instance, optical waveguide amplifiers.
公开日期	1998-03-18
申请日期	1997-09-02
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/52101]
专题	半导体激光器专利数据库
作者单位	LUCENT TECHNOLOGIES INC.
推荐引用方式 GB/T 7714	STRASSER, THOMAS A.. Mode coupling optical waveguide grating. EP0829740A2. 1998-03-18.

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