G - Physics – 02 – B
Patent
G - Physics
02
B
26/197, 49/8, 88
G02B 6/00 (2006.01)
Patent
CA 1200128
SINGLE POLARIZATION OPTICAL FIBERS AND PROCESS FOR FABRICATION OF SAME ABSTRACT OF THE DISCLOSURE In the single polarization optical fiber of the present invention, an elliptical jacket is composed of SiO2 + P2O5 + B2O3, whereby increase in transmission loss at long wavelength band is prevented. In the process for fabricating single polarization optical fibers of the invention, a starting silica tube is subjected to pressure reduction with an amount of pressure reduction in response to concentration of dopants P2O5 + B2O3, whereby an ellipticity of the resulting elliptical jacket is made to be a pertinent value.
405026
Kajioka Hiroshi
Nakagawa Junkichi
Tokunaga Toshihide
Hitachi Cable Ltd.
Marks & Clerk
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