发明名称 |
Optical waveguide and fabricating method thereof, and optical waveguide circuit |
摘要 |
An optical waveguide and an optical waveguide circuit having polarization insensitivity or a required low-level polarization dependence without degradation of the optical characteristics and reliability are disclosed, and a fabricating method of an optical waveguide and an optical waveguide circuit having polarization insensitivity or a required low-level polarization dependence without increasing the fabricating burden and the cost are disclosed. The optical waveguide comprises a planar substrate; a lower cladding which is provided on the planar substrate, where the lower cladding has a ridge; a core, provided on the ridge of the lower cladding, for transmitting light; and an upper cladding provided in a manner such that the core is covered with the upper cladding. The ridge has a shape predetermined so as to decrease polarization dependence of the optical waveguide to a required low level.
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申请公布号 |
US6625370(B2) |
申请公布日期 |
2003.09.23 |
申请号 |
US20010931684 |
申请日期 |
2001.08.16 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
ITOH MIKITAKA;KASAHARA RYOICHI;SAIDA TAKASHI;HIDA YASUHIRO |
分类号 |
G02B6/12;G02B6/122;G02B6/132;G02B6/136;(IPC1-7):G02B6/10 |
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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