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

    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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