Radiation resistant multiple fiber
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United States of America Patent
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Jan 29, 1991
Grant Date -
N/A
app pub date -
Jun 14, 1989
filing date -
Jun 29, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
It is disclosed a radiation resistant multiple fiber which is excellent in radiation resistance at the region of visible light, and therefore is suitable as an image transmitter of image scope, wherein a number of optical fiber elements each of which comprises a core composed of a pure silica glass and a cladding layer formed on the core and composed of a doped silica glass are mutually heat-fused, and said pure silica glass of the core having a chlorine content of lower than 1 ppm, and OH group content of lower than 1000 ppm, and also fluorine content of at least 100 ppm.
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