Fabrication of optical fibers using differential mode-group delay measurement
AssigneeBell Telephone Laboratories, Incorporated
InventorsMichael J. Buckler, Raymond B. Kummer, Stephen C. Mettler, Calvin M. Miller
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Abstract
A method of forming optical fibers with improved mode dispersion characteristics is disclosed. The technique involves differential mode-group delay measurement to optimize dispersion by means of appropriate index of refraction configurations. The differential delay measurement technique involves selectively launching light into the multimode fiber using a single mode fiber which is spliced to the multimode fiber using an adjustable splice including an index matching fluid.
Claims9
In a method of forming a multimode optical fiber with improved mode dispersion characteristics comprising
- thermochemically reacting gaseous glass precursor reactants to form a multimode optical fiber;
- measuring the mode dispersion characteristics of the multimode fiber using a differential mode-group delay measurement technique;
- altering, in accordance with the results of the measurement, the thermochemical reaction of the gaseous glass precursor reactants to form a multimode optical fiber with optimized mode dispersion characteristics,
- the invention CHARACTERIZED IN THAT
- the differential mode-group delay measurement technique comprises launching light into the multimode fiber using a single mode fiber which is spliced to the multimode fiber using an adjustable splice comprising an index matching fluid.
Dependencies are inferred from the claim text.