Wye-branching optical circuit

Details Wye-branching optical circuit Wye-branching optical circuit

1991-10-25

1994-02-22

Ullah, Akm E.

Optical waveguides

With optical coupler

Particular coupling structure

G02B 600, G02B 636

Patent

active

052895513

ABSTRACT:
A wye-branching optical circuit including an input waveguide and at least two output waveguides, which are single mode waveguides or multi-mode waveguides in which only several modes are propagated. The waveguides are formed in a substrate, wherein a portion of the input waveguide is a low effective refractive index waveguide where higher order modes are cut-off, and the effective refractive index of a fundamental mode is lower than in the other waveguides formed in the substrate.

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