Optical waveguide having periodic spatial perturbations

Details Optical waveguide having periodic spatial perturbations Optical waveguide having periodic spatial perturbations

1976-09-22

1978-06-06

Corbin, John K.

G02B 514

Patent

active

040933431

ABSTRACT:
An optical waveguide in which intermodal coupling is deliberately induced. Perturbations are introduced along the waveguide. The perturbations have a spatial frequency that varies along the guide from f.sub.1 to f.sub.2, where f.sub.2 is .ltoreq. the critical frequency above which coupling to unguided modes occurs and f.sub.1 corresponds to the beat between the n.sup.th and the (n + 1).sup.th modes, the lowest modes of interest propagating in the guide.

REFERENCES:
patent: 3666348 (1972-05-01), Marcatili
patent: 3687514 (1972-08-01), Miller et al.
patent: 3909110 (1975-09-01), Marcuse
The Bell System Tech. Jour., vol. 53, No. 9, Nov. 1974, pp. 1795-1815.
D. Marcuse, "Reduction of Multimode Pulse Dispersion by Intential Mode Coupling".

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