发明名称 |
Laser processing method to an optical waveguide |
摘要 |
In a method for forming a hole for fitting an optical fiber only at a core portion without having to precisely match or accord the focus of a laser beam with the end surface of an optical waveguide, when a laser beam is irradiated onto the end surface of the optical waveguide, the focus of the laser beam is turned away from the end surface of the optical waveguide and a region of the irradiation includes the core and the periphery thereof. Thereafter, the energy of the laser beam is increased step by step, and a few pulses thereof are radiated with the intensity fixed when ablation occurs at the core portion, so that the hole is formed only at the core portion.
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申请公布号 |
US6008467(A) |
申请公布日期 |
1999.12.28 |
申请号 |
US19970943488 |
申请日期 |
1997.10.03 |
申请人 |
NIPPON SHEET GLASS CO., LTD. |
发明人 |
TSUNETOMO, KEIJI;KOYAMA, TADASHI |
分类号 |
G02B6/12;G02B6/13;G02B6/134;G02B6/30;G02B6/36;H01S3/00;(IPC1-7):B23K26/00 |
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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