| 摘要 |
The optical fibre cable of the type comprising a fibre (3) having a central core and a surrounding cladding is made for transmitting optical power exceeding 1 kW. At least one of the fibre ends is provided with a cooling arrangement for optical power loss comprising a cavity with a flowing coolant (2) surrounding the envelope surface of the fibre end. Incident radiation that falls outside the fibre comes into the coolant, preferably a liquid coolant such as water, where it is at least partially absorbed. At least one of the limiting surfaces is non-absorbing for the incident radiation, while the other limiting wall surfaces are arranged to absorb such radiation that is still present and transmitted through the flowing coolant.
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