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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 34, Iss. 26 — Sep. 10, 1995
  • pp: 5913–5919

Focusing-grating-coupler arrays for uniform and efficient signal distribution in a backboard optical interconnect

Seok Ho Song and El Hang Lee  »View Author Affiliations


Applied Optics, Vol. 34, Issue 26, pp. 5913-5919 (1995)
http://dx.doi.org/10.1364/AO.34.005913


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Abstract

Several one-dimensional arrays of focusing grating couplers are designed for uniform distribution of incident optical powers to several processing boards in a backboard interconnection scheme. As main design parameters, both the length and the duty cycle of each focusing grating coupler are determined on the bases of ray-optic propagation-mode analysis in a slab waveguide and of rigorous coupled-wave diffraction analysis for out-coupled radiation modes. The backboard interconnection scheme incorporating the one-dimensional focusing-grating-coupler arrays, when used to distribute a guided optical power of TE0 mode to several converging waves radiated only toward a glass substrate, displayed a power uniformity of 5% and a total coupling efficiency of 99.1%, which can be highly acceptable in practical use.

© 1995 Optical Society of America

History
Original Manuscript: September 23, 1994
Revised Manuscript: March 10, 1995
Published: September 10, 1995

Citation
Seok Ho Song and El Hang Lee, "Focusing-grating-coupler arrays for uniform and efficient signal distribution in a backboard optical interconnect," Appl. Opt. 34, 5913-5919 (1995)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-34-26-5913

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