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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 32 — Nov. 10, 2007
  • pp: 7858–7861

Low-loss coupler between fiber and waveguide based on silicon-on-insulator slot waveguides

Yan Liu and Jinzhong Yu  »View Author Affiliations


Applied Optics, Vol. 46, Issue 32, pp. 7858-7861 (2007)
http://dx.doi.org/10.1364/AO.46.007858


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Abstract

We propose a novel optical fiber-to-waveguide coupler for integrated optical circuits. The proper materials and structural parameters of the coupler, which is based on a slot waveguide, are carefully analyzed using a full-vectorial three-dimensional mode solver. Because the effective refractive index of the mode in a silicon-on-insulator-based slot waveguide can be extremely close to that of the fiber, a highly efficient fiber-to-waveguide coupling application can be realized. For a TE-like mode, the calculated minimum mismatch loss is approximately 1.8   dB at 1550   nm , and the mode conversion loss can be less than 0.5   dB . The discussion of the present state of the art is also involved. The proposed coupler can be used in chip-to-chip communication.

© 2007 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(130.3120) Integrated optics : Integrated optics devices
(230.0230) Optical devices : Optical devices
(230.3120) Optical devices : Integrated optics devices

ToC Category:
Integrated Optics

History
Original Manuscript: July 13, 2007
Revised Manuscript: September 4, 2007
Manuscript Accepted: September 26, 2007
Published: November 5, 2007

Citation
Yan Liu and Jinzhong Yu, "Low-loss coupler between fiber and waveguide based on silicon-on-insulator slot waveguides," Appl. Opt. 46, 7858-7861 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-32-7858

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