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1. 发明授权

US07330620B2 Low loss funnel-type PLC optical splitter with input cladding mode absorption structure and/or output segmented taper structure 有权
标题翻译：低损耗漏斗型PLC分光器，具有输入包层模式吸收结构和/或输出分段锥形结构
公开(公告)号：US07330620B2
公开(公告)日：2008-02-12
申请号：US11675896
申请日：2007-02-16
申请人： Kenzo Ishida , Alan Tafapolsky , Takaharu Fujiyama
发明人： Kenzo Ishida , Alan Tafapolsky , Takaharu Fujiyama
IPC分类号： G02B6/02 , G02B6/10
CPC分类号： G02B6/125 , G02B6/1228
摘要： A funnel-type planar lightwave circuit (PLC) optical splitter having an input optical waveguide, a slab waveguide receiving the input optical signal from the input optical waveguide, and output waveguides projecting from the slab region. The region connecting the slab waveguide to the output waveguides is characterized by a segmented taper structure. In another additional, or alternative aspect of the present invention, a cladding mode absorption region runs along either or both sides of the input optical waveguide. A funnel-type splitter with both a cladding mode absorption region and a segmented taper structure provides a “super” low loss splitter design, when considering both insertion loss and polarization dependent loss. Advantageously, the disclosed funnel-type PLC splitter does not require a quartz substrate due to its very low PDL, and a silicon substrate can be used. Silicon substrates are known to be lower cost, with a higher resistance to fracture.
摘要翻译：具有输入光波导的漏斗型平面光波回路（PLC）光分路器，接收来自输入光波导的输入光信号的平板波导和从板区域突出的输出波导。将平板波导连接到输出波导的区域的特征在于分段锥形结构。在本发明的另一个或另一方面中，包层模式吸收区沿输入光波导的一侧或两侧延伸。当考虑插入损耗和偏振相关损耗时，具有包层模式吸收区域和分段锥形结构的漏斗型分流器提供了“超级”低损耗分离器设计。有利地，所公开的漏斗型PLC分离器由于其非常低的PDL而不需要石英基板，并且可以使用硅基板。已知硅基板具有较低的成本，具有较高的抗断裂性。

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