Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1980-06-23
1981-09-01
Fisher, Richard V.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 2, 65 29, 356 731, C03B 3707, C03B 37075, G01N 2100
Patent
active
042869790
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.
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Jeunhomme et al., "Selective Mode Excitation . . . ", Applied Optics, vol. 17, No. 3, Feb. 1978, pp. 463-468.
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Epworth, "Phenomenom of Modal Noise in Fiber Systems", Proc. of Meeting on Optical Fiber Comm., ThD 1, Mar. 6-8, 1979, Washington, D.C., pp. 106-108.
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Buckler Michael J.
Kummer Raymond B.
Mettler Stephen C.
Miller Calvin M.
Bell Telephone Laboratories Incorporated
Dworetsky Samuel H.
Fisher Richard V.
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