Technology
NTT developed a
less than 2-mm thick flat optical cable. The new optical cable is strengthened
by reinforced plastic and iron wire, and it exhibits the same strength as the
existing optical cables. The reinforced plastic and iron wire lining along the
fiber are covered with the covering material. The company applied the
technology to increase the confinement effect to optical fiber and successfully
developed an optical cable that does not impair transmission characteristics
even if it is folded.
According to NTT, windows
and doors have generally a 2-mm gap. Because the new product is flat and less
than 2 mm in thickness, it can be laid down into old detached houses and
apartment houses that have difficulty in installing round optical cables. The
existing round optical cable less than 2 mm in thickness cannot exhibit the
same transmission characteristics if it is folded, and it cannot be used for old
buildings. NTT has already provided the technology to cable companies, and the
production has already started.
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