Optical waveguides – With optical coupler – Input/output coupler
Patent
1991-01-18
1992-10-20
Jones, W. Gary
Optical waveguides
With optical coupler
Input/output coupler
65 311, 385123, G02B 600
Patent
active
051577470
ABSTRACT:
Germanosilicate optical fiber having substantially higher GeO/GeO.sub.2 ratio than conventional comparison-fiber is disclosed. The fiber has a loss at wavelength of 330 nm of at least 30 db/m.mole % GeO.sub.2. Such fiber can be advantageously used for making in line photorefractive Bragg gratings and other photorefractive fiber components. Fiber according to the invention can be produced by an inside deposition process (e.g., MCVD, PCVD), by an outside deposition process (e.g., VAD, OVD), or even a sol/gel process, and embodiments of the general method of making fiber according to the invention are disclosed.
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Aktins Robert M.
Nelson Katherine T.
Walker Kenneth L.
AT&T Bell Laboratories
Bruckner John J.
Jones W. Gary
Pacher E. E.
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