Waveguide type light merging and branching device

Details Waveguide type light merging and branching device Waveguide type light merging and branching device

1988-12-07

1990-09-04

LaRoche, Eugene R.

350 9613, 350 9614, G02B 626

Patent

active

049539345

ABSTRACT:
A waveguide type light merging and branching device, in which a resistance layer is disposed on a surface of a substrate or at least on one side therein and a low refractive index layer (refractive index n.sub.b), a core waveguide layer (refractive index n.sub.c, n.sub.c >n.sub.b), and a cladding layer (refractive index n.sub.n, n.sub.n >n.sub.c) superposed thereon on each other, the resistance layer having electrode terminals at the two extremities thereof, to which a voltage is applied.

REFERENCES:
patent: 4006963 (1977-02-01), Baues et al.
patent: 4648687 (1987-03-01), Yoshida et al.
patent: 4671605 (1987-06-01), Soref
patent: 4674827 (1987-06-01), Izutsu et al.
N. Takato et al., "Low-Loss Directional Coupler Using High-Silica Embedded Channel Waveguides", First Optoelectronics Conference (OEC '86), Technical digest, Jul., 1986.

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