Fibre
First Claim
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1. An optical fiber cable for high power laser radiation transmission comprising:
- a light absorbing area;
a fiber having a core and a cladding;
a rod provided at at least one of the ends of the fiber and fused to an end surface of the core, said rod being substantially cylindrical and having a diameter larger than that of the fiber;
a reflector provided at a distance from said rod along the fiber core for reflecting light entering outside the fiber core and through said rod to said light absorbing area; and
a glass capillary surrounding said fiber and in optical contact with the cladding of the fiber and located between the reflector and the rod.
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Abstract
An optical fiber cable for high power laser radiation transmission comprises a fiber having a core and a surrounding cladding, a rod provided at at least one of contact ends of the core and fused to an end surface of the core the rod having larger diameter than that of the core, and a reflector provided at this end of the fiber, the rod being designed to conduct rays entering outside the fiber towards an area where they can be absorbed without causing any damage, to conduct rays not linked into the fiber towards the reflector.
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Citations
11 Claims
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1. An optical fiber cable for high power laser radiation transmission comprising:
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a light absorbing area; a fiber having a core and a cladding; a rod provided at at least one of the ends of the fiber and fused to an end surface of the core, said rod being substantially cylindrical and having a diameter larger than that of the fiber; a reflector provided at a distance from said rod along the fiber core for reflecting light entering outside the fiber core and through said rod to said light absorbing area; and a glass capillary surrounding said fiber and in optical contact with the cladding of the fiber and located between the reflector and the rod. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for transmitting a high power laser radiation by an optical fiber cable including a core and a cladding, said method comprising the steps of:
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a) fusing a substantially cylindrical rod having a diameter larger than that of the core to an end surface of the core at at least one of contact ends of the core; b) providing a reflector at a distance from said rod along the fiber core, and c) providing a glass capillary around said fiber between the reflector and the rod; d) reflecting light entering outside the fiber core and through the rod to a light absorbing area. - View Dependent Claims (9, 10, 11)
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Specification