Method of manufacturing optical fibres
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 3, 1989
Grant Date -
N/A
app pub date -
Jun 14, 1988
filing date -
Jun 16, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Polarization-retaining optical fibres are manufactured according to the PCVD method, in which on the inside of a glass tube (1) and, simultaneously on at least two glass rods (2, 3) which are arranged inside the glass tube such that their longitudinal axes run parallel to the longitudinal axis of the glass tube, glass is deposited in layers and the glass rods are removed from the glass tube upon completion of the glass deposition process. Alternatively, a single glass rod, the radial dimensions of which in two mutually perpendicular directions are in a ratio unequal to one, is arranged in a glass tube such that its longitudinal axis coincides with the longitudinal axis of the glass tube.
First Claim
Other Claims data not available