Integrated optic device with active and passive guide zones

Details Integrated optic device with active and passive guide zones Integrated optic device with active and passive guide zones

1997-06-27

1999-02-02

Ngo, Hung N.

Optical waveguides

Planar optical waveguide

Thin film optical waveguide

385131, 359343, G02B 610

Patent

active

058676236

ABSTRACT:
The device integrates on the same glass substrate a passive monomode guide achieved by ion exchange in the substrate and an active monomode guide with lateral confinement by the substrate formed by an active thin layer deposited on the substrate and covering a zone in the form of a channel achieved by ion exchange in the substrate. The passive monomode guide constitutes the extension of the zone in the form of a channel of the active guide. The thin layer comprises a transition zone enabling adiabatic passage of the light from the passive guide to the active guide and vice-versa. The transition zone can be formed by an edge of the layer cutting the axis of the zone in the form of a channel obliquely or by a zone of variable thickness of the thin layer.

REFERENCES:
patent: 5381262 (1995-01-01), Arima et al.
patent: 5515464 (1996-05-01), Sheem
patent: 5623568 (1997-04-01), Khan et al.

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