Process for reducing the hydroxyl content of optical waveguides

Details Process for reducing the hydroxyl content of optical waveguides Process for reducing the hydroxyl content of optical waveguides

1984-10-10

1986-04-22

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 33, 55 35, 55 75, 65 312, B01D 5304

Patent

active

045839972

ABSTRACT:
The inert or oxidizing auxiliary gases used in the manufacture of optical waveguides often contain traces of water which can be the cause of disruptive OH groups in the glass fiber. According to the invention, this disruption is overcome by reducing the hydroxyl content of optical waveguides by treating the auxiliary gases with heavy water (D.sub.2 O), so as to replace the hydrogen atom in the OH groups with deuterium, and then subjecting the gases to a drying step. Preferably, the auxiliary gases are subjected to a preliminary drying prior to treatment with D.sub.2 O.

REFERENCES:
patent: 3531916 (1970-10-01), Kulperger et al.
patent: 3808773 (1974-05-01), Reyhing et al.
patent: 4282196 (1981-08-01), Kometani et al.
patent: 4310341 (1982-01-01), Barns et al.
patent: 4338111 (1982-07-01), Edahiro et al.
patent: 4389230 (1983-06-01), Modone et al.
patent: 4445918 (1984-05-01), Modone et al.
patent: 4504297 (1985-03-01), Kosinski et al.
Brongersma et al., "The Preparation of Alkali-Germanosilicate Optical Fib Using the Double Crucible System", ACTA Electronica, 22, 3, 1979, 245-254.
Modone et al., "OH Reduction in Preforms by Isotope Exchange", CSELT Rapporti Tecnici-vol. IX, No. 6-Dec. 1981, pp. 621-623.

Affiliated with

Also associated with

Rating

Process for reducing the hydroxyl content of optical waveguides does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for reducing the hydroxyl content of optical waveguides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for reducing the hydroxyl content of optical waveguides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1913522