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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 28, Iss. 17 — Sep. 1, 1989
  • pp: 3577–3580

Carrier refraction in quantum well waveguides

Richard A. Soref and Brian R. Bennett  »View Author Affiliations


Applied Optics, Vol. 28, Issue 17, pp. 3577-3580 (1989)
http://dx.doi.org/10.1364/AO.28.003577


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Abstract

Carrier-induced refractive index changes in forward-biased InGaAs–InAlAs quantum well waveguides are calculated using a Kramers-Kronig transformation of Bar-Joseph’s experimental absorption spectra [ Phys. Rev. Lett. 59, 1357 ( 1987)]. At the 1.65-μm wavelength where the material is nominally transparent, an index change of −0.06 is found for an injection of 6 × 1017 electrons/cm3. A quantum well waveguide 2 × 2 reversed-Δβ directional coupler switch with an active length of 480 μm is proposed.

© 1989 Optical Society of America

History
Original Manuscript: May 16, 1988
Published: September 1, 1989

Citation
Richard A. Soref and Brian R. Bennett, "Carrier refraction in quantum well waveguides," Appl. Opt. 28, 3577-3580 (1989)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-28-17-3577

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