Long-period grating switches and devices using them
EGGLETON, BENJAMIN JOHN; JUDKINS, JUSTIN BOYD; SLUSHER, RICHART ELLIOTT; VENGSARKAR, ASHISH MADHUKAR
1999-05-25
著作权人FURUKAWA ELECTRIC NORTH AMERICA, INC.
专利号US5907647
国家美国
文献子类授权发明
其他题名Long-period grating switches and devices using them
英文摘要In accordance with the invention, an optical switch employs a long-period grating for switching light between alternative optical paths. In essence, the device comprises a variable intensity light source, a length of optical waveguide dimensioned for co-propagating light in two distinguishable modes, and a long-period grating in the waveguide for coupling between the two modes. The waveguide is nonlinear so that the effective refractive index is a function of intensity. As a consequence the coupling produced by the grating is a function of intensity. Thus different levels of light intensity can switch between the separate modes. Advantageously a mode separator is provided for directing light in the two modes onto respectively different optical output paths. A variety of two-mode switches and optical limiters are described, as well as an optical system using the switch.
公开日期1999-05-25
申请日期1997-02-18
状态失效
内容类型专利
源URL[http://ir.opt.ac.cn/handle/181661/36381]  
专题半导体激光器专利数据库
作者单位FURUKAWA ELECTRIC NORTH AMERICA, INC.
推荐引用方式
GB/T 7714
EGGLETON, BENJAMIN JOHN,JUDKINS, JUSTIN BOYD,SLUSHER, RICHART ELLIOTT,et al. Long-period grating switches and devices using them. US5907647. 1999-05-25.
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