Method for manipulating optical energy using poled structure

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	Method for manipulating optical energy using poled structure
其他题名	Method for manipulating optical energy using poled structure
	BRINKMAN, MICHAEL, J.; DEACON, DAVID, A., G.; BISCHEL, WILLIAM, K.; FIELD, SIMON, J.
	1998-05-13
专利权人	GEMFIRE CORPORATION
公开日期	1998-05-13
授权国家	欧洲专利局
专利类型	发明申请
摘要	Method for optical energy transfer and energy guidance uses an electric field to control energy propagation using a class of poled structures in solid material. The poled structures, which may form gratings in thin film or bulk configurations, may be combined with waveguide structures. Electric fields are applied to the poled structures to control routing of optical energy. Techniques include frequency-selective switchable- and adjustable-tunable reflection, splitting, directional coupling, frequency-tunable switching and efficient beam combining, as well as polarized beam combining. Adjustable tunability is obtained by a poled structure which produces a spatial gradient in a variable index of refraction along an axis in the presence of a variable electric field. In one embodiment, the present invention is a method of switching a grating which consists of a poled material with an alternating domain structure of specific period. When an electric field is applied across the periodic structure, a Bragg grating is formed by the electro-optic effect, reflecting optical radiation with a certain bandwidth around a center wavelength. The grating may be used by itself, or in combination with other gratings to form integrated structures in a ferroelectric crystal. Specifically of interest is an method of using an integrated structure in which one or more optical waveguides interact with one or more periodic structures to form a wavelength selective integrated optic modulator, switch, or feedback element.
其他摘要	用于光能传递和能量引导的方法使用电场来使用固体材料中的一类极化结构来控制能量传播。可以形成薄膜或体结构的光栅的极化结构可以与波导结构组合。将电场施加到极化结构以控制光能的路由。技术包括频率选择性可切换和可调谐可调反射，分离，定向耦合，频率可调谐切换和有效光束组合，以及偏振光束组合。通过极化结构获得可调节的可调谐性，该极化结构在存在可变电场的情况下沿轴线产生可变折射率的空间梯度。在一个实施例中，本发明是一种切换光栅的方法，该光栅由具有特定周期的交替畴结构的极化材料组成。当在周期性结构上施加电场时，通过电光效应形成布拉格光栅，反射具有围绕中心波长的特定带宽的光辐射。光栅可以单独使用，或与其他光栅组合使用，以在铁电晶体中形成集成结构。特别感兴趣的是使用集成结构的方法，其中一个或多个光波导与一个或多个周期性结构相互作用以形成波长选择性集成光学调制器，开关或反馈元件。
主权项	A method for operating a laser comprising a solid material for passing optical energy, an input waveguide in said solid material, a base reflector disposed along an optical axis, a plurality of output waveguides encountering said input waveguide at intersection regions along said input waveguide, a plurality of electrically-switchable beam redirectors disposed along said input waveguide at said intersection regions, each one of said electrically-switchable beam redirectors comprising a first electrically-conductive material forming a first electrode, said first electrode confronting said solid material and bridging at least one electrically-controllable element in said solid material, a plurality of gratings disposed along said output waveguides defining electrically-selectable retroreflectors further defining cavities between said base reflectors and said gratings, an optical amplifier disposed along an optical axis, said optical axis traversing said solid material, and an optical coupling means disposed between said solid material and said optical amplifier along said optical axis, said method comprising: selectively activating said redirectors simultaneously in order to support multiple simultaneous operation at different frequencies.
申请日期	1995-09-07
专利号	EP0783719A4
专利状态	失效
申请号	EP1995934969
公开（公告）号	EP0783719A4
IPC 分类号	G02B6/12 \| G02F1/03 \| G02F1/035 \| G02F1/125 \| G02F1/29 \| G02F1/313 \| G02F1/33 \| G02F1/37 \| H01S5/00 \| G02F1/01 \| H01S3/08 \| H01S3/1055 \| H01S5/14 \| G02F1/07 \| G02F1/11
专利代理人	-
代理机构	COZENS, PAUL DENNIS, ET AL
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/67861
专题	半导体激光器专利数据库
作者单位	GEMFIRE CORPORATION
推荐引用方式 GB/T 7714	BRINKMAN, MICHAEL, J.,DEACON, DAVID, A., G.,BISCHEL, WILLIAM, K.,et al. Method for manipulating optical energy using poled structure. EP0783719A4[P]. 1998-05-13.

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