发明名称 |
Verfahren zur Modifizierung eines optischen Wellenleiters und auf diese Weise modifizierter Wellenleiter. |
摘要 |
A method of structurally modifying a silica monomode optical fibre (4) by launching optical power into the fibre (4) from a Nd:YAG laser operating at 1.064um and raising the temperature of a portion of the fibre (4) by bringing a metal film (12) into contact with a polished half-coupler block (6) to absorb energy from the laser (2). A structural modification of the fibre is initiated which propagates towards the laser (2) sustained by the optical power. It provides a means of decommissioning an optical fibre. The modified optical fibre (4) has regular periodic damage sites which can be used to form a diffraction grating. The method may also be used as an optical power limiter to protect optical networks from too high optical power inputs. |
申请公布号 |
DE3888771(D1) |
申请公布日期 |
1994.05.05 |
申请号 |
DE19883888771 |
申请日期 |
1988.09.21 |
申请人 |
BRITISH TELECOMMUNICATIONS P.L.C., LONDON, GB |
发明人 |
KASHYAP, RAMAN, IPSWICH SUFFOLK IP4 3NU, GB |
分类号 |
G02B6/00;B23K26/00;C03B37/15;G02B6/02;G02B6/255;G02F1/01;(IPC1-7):B23K26/00;C03B37/14;G02B6/16;G02B5/18 |
主分类号 |
G02B6/00 |
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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