发明名称 |
IMPROVED OPTICAL SPLITTER WITH TAPERD MULTIMODE INTERFERENCE WAVEGUIDE |
摘要 |
<p>A 1 x 2 splitter design having low loss is described. The splitter has a non-adiabatic tapered waveguide (22) connected between a substantially single-mode input waveguide (20) and two output waveguides (24, 26). The non-adiabatic tapered waveguide widens in width towards the output waveguides, and merges substantially continuously with the input waveguide in a direction parallel to the optical axis of the input waveguide. This keeps radiation mode generation to a minimum which, in turn, keeps insertion loss low. In the described embodiment, the non-adiabatic taper shape is based on a perturbed cosine function. The 1 x 2 splitter can be cascaded with other such splitters in order to build a 1 x 2N splitter design.</p> |
申请公布号 |
WO2004008207(A1) |
申请公布日期 |
2004.01.22 |
申请号 |
WO2003GB03028 |
申请日期 |
2003.07.11 |
申请人 |
ALCATEL OPTRONICS UK LIMITED;VAN DER VLIET, FREDERICK, MARCEL |
发明人 |
VAN DER VLIET, FREDERICK, MARCEL |
分类号 |
G02B6/125;G02B6/122;G02B6/28;(IPC1-7):G02B6/28 |
主分类号 |
G02B6/125 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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