发明名称 |
Method of manufacturing grating |
摘要 |
A method of manufacturing a grating in an optical waveguide that includes a core and a cladding covering the core. The method includes scanning a laser beam along an optical axis of the optical waveguide to modulate the refractive index of the core. The core is made of a material having a refractive index that is changeable upon irradiation by radiation. In addition, in scanning the core, the irradiation range of the laser beam is controlled and the core is scanned several times. Therefore, a predetermined distribution of irradiation is obtained in a direction of the optical axis of the grating.
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申请公布号 |
US6690860(B2) |
申请公布日期 |
2004.02.10 |
申请号 |
US20010891319 |
申请日期 |
2001.06.27 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
MATSUMOTO SADAYUKI;OHIRA TAKUYA;TAKABAYASHI MASAKAZU;YOSHIARA KIICHI;MATSUNO SHIGERU;TAKEYA HAJIME;HOSHIZAKI JUNICHIRO |
分类号 |
G02B6/13;G02B5/18;G02B6/02;(IPC1-7):G02B6/34 |
主分类号 |
G02B6/13 |
代理机构 |
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代理人 |
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地址 |
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