Optical fiber preform cleaning method
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United States of America Patent
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-
Jul 17, 2001
Grant Date -
N/A
app pub date -
Mar 10, 1994
filing date -
Mar 10, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Glass preforms are cleaned by contacting each preform (11) with supercritical carbon dioxide which dissolves residual index-matching oil on the preform. The liquefied carbon dioxide is then converted to gaseous carbon dioxide which conveniently separates the index-matching oil so that it can be recovered and reused. The gaseous carbon dioxide is likewise recycled for use in cleaning other preforms, and so there is substantially no waste.
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Cited Art Landscape
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