发明名称 |
Optical filter |
摘要 |
A main optical path disposed between light input and output ends and an auxiliary optical path disposed so as to correspond to the main optical path are optically coupled to each other with first, second, and third optical couplers. The respective optical path lengths of main and auxiliary optical paths differ from each other between the first and second optical couplers and between the second and third optical couplers. Between the first and second optical couplers and between the second and third optical couplers, at least one of the main and auxiliary optical paths is provided with temperature adjusting means for adjusting the temperature of the corresponding optical path.
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申请公布号 |
US2001036005(A1) |
申请公布日期 |
2001.11.01 |
申请号 |
US20010840929 |
申请日期 |
2001.04.25 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
HATAYAMA HITOSHI;NISHIMURA MASAYUKI |
分类号 |
G02B6/12;G02F1/01;G02F1/225;G02F1/31;H01S3/06;H01S3/10;(IPC1-7):H01S3/00 |
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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