发明名称 |
Optical module and method of forming the optical module |
摘要 |
An object beam divided by a light dividing means 12 is caused to enter a photo-refractive polymer layer 6 through an optical fiber 23. On the other hand, a reference beam divided by the light dividing means 12 is irradiated on the photo-refractive polymer layer 6 through a lens 13 from the opposite side. In this manner, the object beam is superimposed on the reference beam in the photo-refractive polymer layer 6 to provide an interference fringe or pattern. Since a photo-refractive polymer has a specific characteristic whereby the refractive index changes according to the intensity of irradiation light and the change is fixed after the irradiation light is stopped, a diffraction grating 5 corresponding to the interference fringe is recorded on the photo-refractive polymer layer 6. This diffraction grating 5 exhibits a specific characteristic whereby the object beam emitted from the optical fiber 23 is emitted in the direction of the reference beam.
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申请公布号 |
US6847761(B2) |
申请公布日期 |
2005.01.25 |
申请号 |
US20020209780 |
申请日期 |
2002.07.31 |
申请人 |
NIPPON SHEET GLASS CO., LTD. |
发明人 |
HAMANAKA KENJIRO |
分类号 |
G02B6/32;G02B6/34;G02B6/42;(IPC1-7):G02B6/32;G02B6/30;G02B5/32 |
主分类号 |
G02B6/32 |
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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