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1. 发明申请

US20150168650A1 THIN FILM FILTER (TFF) EMBEDDED WAVEGUIDE WDM DEVICE EMPLOYING PARABOLA-SHAPED WAVEGUIDES 审中-公开
标题翻译：薄膜过滤器（TFF）嵌入式波导器件采用抛物面波形
公开(公告)号：US20150168650A1
公开(公告)日：2015-06-18
申请号：US14407191
申请日：2013-06-13
申请人： SIPHX CORPORATION
发明人： Katsunari Okamoto
IPC分类号： G02B6/293
CPC分类号： G02B6/2938 , G02B6/29361 , G02B6/29389 , H04J14/0226 , H04J14/0282
摘要： A wavelength-division lightwave multiplexing device, and method of its manufacture, having an embedded filter and two parabola-shaped crossing waveguides, the waveguides providing collimation of light transmitted therein. At least one of the parabola-shaped wave crossing waveguides includes a first port, and a second port, and a widened portion between the first and second ports having a parabola-shaped profile, wherein the widened portion widens from the first port toward a midpoint thereof, and then narrows to the second port. The invention achieves low insertion loss and high spectral isolation while keeping a narrow guard band smaller, and addresses the problem of poor spectral isolation characteristics in the filter-embedded waveguide WDM device when it is adopted to applications requiring a guard band narrower.
摘要翻译：波分复用光波多路复用装置及其制造方法，具有嵌入式滤波器和两个抛物线形交叉波导，该波导提供在其中透射的光的准直。抛物线波形波导中的至少一个包括第一端口和第二端口，以及在第一和第二端口之间的具有抛物线形轮廓的加宽部分，其中加宽部分从第一端口朝向中点变宽然后变窄到第二个港口。本发明实现低插入损耗和高频谱隔离，同时保持窄的保护带更小，并且解决了当将滤波器嵌入式波导WDM器件用于需要较窄带宽的保护带的应用时，其滤波器嵌入式波导WDM器件的光谱隔离特性差。

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