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Optics Letters

Optics Letters


  • Vol. 20, Iss. 21 — Nov. 1, 1995
  • pp: 2198–2200

Improved vertical directional coupler for optimum edge coupling to an embedded photodetector

P. C. Noutsios and G. L. Yip  »View Author Affiliations

Optics Letters, Vol. 20, Issue 21, pp. 2198-2200 (1995)

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An improved vertical coupling structure, consisting of a graded-index planar buried waveguide in glass and a dielectric overlayer, is designed and realized to provide an optimum edge coupling to a modeled GaAs photodetector. Calculations of the attenuation coefficient and coupling efficiency show an optimum absorption behavior. Normal-mode measurements and beam-propagation calculations of the coupling length and power transfer ratio are compared.

© 1995 Optical Society of America

Original Manuscript: May 22, 1995
Published: November 1, 1995

P. C. Noutsios and G. L. Yip, "Improved vertical directional coupler for optimum edge coupling to an embedded photodetector," Opt. Lett. 20, 2198-2200 (1995)

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