Beam shaping and practical methods of reducing loss associated with mating external sources and optics to thin silicon waveguides

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	Beam shaping and practical methods of reducing loss associated with mating external sources and optics to thin silicon waveguides
其他题名	Beam shaping and practical methods of reducing loss associated with mating external sources and optics to thin silicon waveguides
	GHIRON, MARGARET; GOTHOSKAR, PRAKASH; MONTGOMERY, ROBERT, KEITH; PATEL, VIPULKUMAR; PATHAK, SOHAM; SHASTRI, KALPENDU; YANUSHEFSKI, KATHERINE, A.
	2006-05-31
专利权人	SIOPTICAL, INC.
公开日期	2006-05-31
授权国家	欧洲专利局
专利类型	发明申请
摘要	A practical realization for achieving and maintaining high-efficiency transfer of light from input and output free-space optics to a high-index waveguide of sub-micron thickness is described. The required optical elements and methods of fabricating, aligning, and assembling these elements are discussed. Maintaining high coupling efficiency reliably over realistic ranges of device operating parameters is discussed in the context of the preferred embodiments.
其他摘要	描述了用于实现和保持从输入和输出自由空间光学器件到亚微米厚度的高折射率波导的高效传输光的实际实现。讨论了所需的光学元件以及制造，对准和组装这些元件的方法。在优选实施例的上下文中讨论了在设备操作参数的实际范围内可靠地保持高耦合效率。
主权项	An optical coupling arrangement for providing a signal path into and out of a silicon optical waveguide formed in a surface layer of a silicon-on-insulator (SOI) wafer comprising a silicon optical waveguide layer disposed over an insulator layer formed on a silicon substrate, the optical coupling arrangement comprising a silicon-based prism coupler disposed to intercept an incoming optical beam from a light source, said silicon-based prism coupler being permanently attached to said SOI wafer in a manner such that a first surface of said prism coupler is disposed substantially parallel to, and mated with, a flat surface of said SOI wafer, the refractive index of said silicon-based prism coupler equal to or greater than the refractive index of said silicon optical waveguide; free-space micro-optic input elements interposed between the light source and the silicon-based prism coupler, to collimate, shape and steer the optical beam to a specific entry point and angle of incidence upon the silicon-based prism coupler; an evanescent coupling region disposed between said silicon-based prism coupler and said silicon optical waveguide; and free-space micro-optic optic elements placed in the path of the beam that emerges from the output surface of the silicon-based prism coupler, to shape, collimate or focus the optical beam, and to steer the optical beam toward a receiving element.
申请日期	2004-04-12
专利号	EP1616209A4
专利状态	失效
申请号	EP2004749985
公开（公告）号	EP1616209A4
IPC 分类号	G02B6/26 \| G02B6/34 \| G02B6/42
专利代理人	-
代理机构	SUCKLING, ANDREW MICHAEL
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/53302
专题	半导体激光器专利数据库
作者单位	SIOPTICAL, INC.
推荐引用方式 GB/T 7714	GHIRON, MARGARET,GOTHOSKAR, PRAKASH,MONTGOMERY, ROBERT, KEITH,et al. Beam shaping and practical methods of reducing loss associated with mating external sources and optics to thin silicon waveguides. EP1616209A4[P]. 2006-05-31.

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