发明名称 |
Planar lightwave circuit and optical circuit |
摘要 |
<p>A planar lightwave circuit is provided. The planar lightwave circuit includes a waveguide and a spotsize converter which is a part of the waveguide, wherein a core is embedded in a cladding in the waveguide, and the spotsize converter is located near an end face of a substrate on which the planar lightwave circuit is formed, the spotsize converter including: a core width fine-tuning part in an end face side of the substrate; and a core width converting part which follows the core width fine-tuning part; wherein core width of the spotsize converter is minimum at an end face of the substrate, a mean taper angle &thetas;1 of the core width fine-tuning part is larger than 0 DEG and smaller than a mean taper angle &thetas;2 of the core width converting part. <IMAGE></p> |
申请公布号 |
EP1189084(A2) |
申请公布日期 |
2002.03.20 |
申请号 |
EP20010307672 |
申请日期 |
2001.09.10 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
MIZUNO, TAKAYUKI;KITOH, TSUTOMU;INOUE, YASUYUKI;HIBINO, YOSHINORI;ITOH, MIKITAKA;SAIDA, TAKASHI;HIDA, YASUHIRO |
分类号 |
G02B6/12;G02B6/122;G02B6/132;G02B6/136;G02B6/34;(IPC1-7):G02B6/293 |
主分类号 |
G02B6/12 |
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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