发明名称 |
OPTICAL INTEGRATED CIRCUIT |
摘要 |
PURPOSE:To provide an optical integrated circuit which shuts off the unnecessary light infiltrating the inside of a waveguide from the outside and simultaneously makes it possible to obtain a material for shutting off this light by an inexpensive process for production. CONSTITUTION:This optical integrated circuit has a waveguide 5 which is formed on a substrate 1 and consists of a core layer 2 for propagating guided light 13 and clad layers 3, 4 formed in the upper part of this core layer 2 and propagates the guided light 13 coupled to this waveguide 5. The region of a part or the whole covering the upper part of at least the clad layer 4 of the waveguide 5 is provided with a coating layer 19 consisting of a material essentially consisting of a high-molecular compd. and having large light absorbance. |
申请公布号 |
JPH0763933(A) |
申请公布日期 |
1995.03.10 |
申请号 |
JP19930210012 |
申请日期 |
1993.08.25 |
申请人 |
RICOH CO LTD |
发明人 |
KATO IKUO;YOKOMORI KIYOSHI |
分类号 |
G02B6/12;G02B6/122;G02B6/42;(IPC1-7):G02B6/122 |
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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