发明名称 |
Optical waveguide module having waveguide substrate made of predetermined material and ferrule made of material different from that of waveguide substrate |
摘要 |
This invention relates to an optical waveguide module having stable temperature characteristics and moist heat characteristics even in a severe environment. This optical waveguide module includes a waveguide component (1) having an optical waveguide on a waveguide substrate made of silicon or silica glass as the first material, and a ferrule (3) made of a plastic material as the second material, in which an end face of the optical fiber (4) is fixed by adhesion while it is inserted in a through hole having a continuous inner wall. This ferrule is fixed with an adhesive having a predetermined strength so that its the end face opposes the end face of the waveguide component. The second material satisfies a relationship: <DF>¾ DELTA L/(E1/E2)¾ < 3.0 x 10<-5> ( DEG C<-1>) </DF> with respect to the first material forming the waveguide substrate, where DELTA L is a difference in thermal expansion coefficient between the first material and the second material, E1 is a modulus of elasticity of the first material, and E2 is a modulus of elasticity of the second material. <IMAGE> |
申请公布号 |
EP1482336(A3) |
申请公布日期 |
2004.12.22 |
申请号 |
EP20040019927 |
申请日期 |
1995.07.20 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
ISHIKAWA, SHINJI;SAITO, MASAHIDE;SEMURA, SHIGERU |
分类号 |
G02B6/30;G02B6/38;G02B6/42 |
主分类号 |
G02B6/30 |
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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