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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 19 — Sep. 19, 2005
  • pp: 7374–7379

A high efficiency input/output coupler for small silicon photonic devices

Goran Z. Masanovic, Graham T. Reed, William Headley, Branislav Timotijevic, Vittorio M. N. Passaro, Raghied Atta, Graham Ensell, and Alan G. R. Evans  »View Author Affiliations


Optics Express, Vol. 13, Issue 19, pp. 7374-7379 (2005)
http://dx.doi.org/10.1364/OPEX.13.007374


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Abstract

Coupling light from an optical fibre to small optical waveguides is particularly problematic in semiconductors, since the refractive index of the silica fibre is very different from that of a semiconductor waveguide. There have been several published methods of achieving such coupling, but none are sufficiently efficient whilst being robust enough for commercial applications. In this paper experimental results of our approach called a Dual-Grating Assisted Directional Coupler, are presented. The principle of coupling by this novel method has been successfully demonstrated, and a coupling efficiency of 55% measured.

© 2005 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers

ToC Category:
Research Papers

History
Original Manuscript: June 15, 2005
Revised Manuscript: August 31, 2005
Published: September 19, 2005

Citation
Goran Masanovic, Graham Reed, William Headley, Branislav Timotijevic, Vittorio Passaro, Raghied Atta, Graham Ensell, and Alan Evans, "A high efficiency input/output coupler for small silicon photonic devices," Opt. Express 13, 7374-7379 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-19-7374


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