Title

Current-induced guiding and beam steering in active semiconductor planar waveguide

Authors

Authors

X. S. Dong; P. LiKamWa; J. Loehr;R. Kaspi

Comments

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Abbreviated Journal Title

IEEE Photonics Technol. Lett.

Keywords

charge carrier processes; integrated optics; laser beam steering; optical planar waveguide components; semiconductor optical amplifiers; REFRACTIVE-INDEX; GAAS-ALGAAS; CARRIER; MODULATORS; INGAASP; LASERS; Engineering, Electrical & Electronic; Optics; Physics, Applied

Abstract

We propose a novel method of achieving beam steering in active GaAs-A1GaAs materials. Carrier-induced refractive index change effect is applied to form a channel waveguide in a slab structure, Current injection is used as a means to control, guide, and steer an optical beam between two active stripes. In a structure that was 710 mu m long, we have experimentally demonstrated waveguiding of an externally coupled optical beam and electrically induced steering of the beam over a 17-mu m lateral distance at the output facet. The results of theoretical analysis and modeling of the beam shift fit the experimental data well.

Journal Title

Ieee Photonics Technology Letters

Volume

11

Issue/Number

7

Publication Date

1-1-1999

Document Type

Article

Language

English

First Page

809

Last Page

811

WOS Identifier

WOS:000080963600015

ISSN

1041-1135

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