Multimode waveguide with enhanced coupling with guided modes

Details Multimode waveguide with enhanced coupling with guided modes Multimode waveguide with enhanced coupling with guided modes

1977-08-12

1979-08-07

Corbin, John K.

65 3A, 350 9630, G02B 514

Patent

active

041636015

ABSTRACT:
In a multimode optical waveguide, coupling is promoted among guided modes while coupling to unguided modes is suppressed. The core includes perturbations having a power spectrum which decreases with increasing mode order and which has a plurality of minima. The length of each perturbation is such that a minimum in the power spectrum of the perturbation occurs at the critical frequency .omega..sub.c and the power spectrum is significantly reduced for high frequencies.

REFERENCES:
patent: 3666348 (1972-05-01), Marcatili
patent: 3687514 (1972-08-01), Miller et al.
patent: 3723921 (1973-03-01), Rowe et al.
patent: 3909110 (1975-09-01), Marcuse
patent: 3912478 (1975-10-01), Presby

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