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

A high efficiency input/output coupler for small silicon photonic devices
A high efficiency input/output coupler for small silicon photonic devices
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.
1094-4087
7374-7380
Mashanovich, G.Z.
c806e262-af80-4836-b96f-319425060051
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139
Headley, W.R.
5a80c998-1fc3-4ad0-a82a-3870250efbd8
Timotijevic, B.
696c7385-dbe1-485c-a881-ba43823f241c
Passaro, V.M.N.
828f0106-cfbc-47ea-b672-7185387214e5
Ensell, G.
48fe0996-1c6b-4816-8bd0-0a3234d36ae8
Atta, R.
c8044599-306d-44a7-a48e-886e1f7ae45a
Evans, A.
1cfe5902-0508-4a86-bbe2-72aa3a927f1a
Mashanovich, G.Z.
c806e262-af80-4836-b96f-319425060051
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139
Headley, W.R.
5a80c998-1fc3-4ad0-a82a-3870250efbd8
Timotijevic, B.
696c7385-dbe1-485c-a881-ba43823f241c
Passaro, V.M.N.
828f0106-cfbc-47ea-b672-7185387214e5
Ensell, G.
48fe0996-1c6b-4816-8bd0-0a3234d36ae8
Atta, R.
c8044599-306d-44a7-a48e-886e1f7ae45a
Evans, A.
1cfe5902-0508-4a86-bbe2-72aa3a927f1a

Mashanovich, G.Z., Reed, G.T., Headley, W.R., Timotijevic, B., Passaro, V.M.N., Ensell, G., Atta, R. and Evans, A. (2005) A high efficiency input/output coupler for small silicon photonic devices. Optics Express, 13 (19), 7374-7380. (doi:10.1364/OPEX.13.007374).

Record type: Article

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.

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Published date: 2005
Organisations: Optoelectronics Research Centre, NANO

Identifiers

Local EPrints ID: 263612
URI: https://eprints.soton.ac.uk/id/eprint/263612
ISSN: 1094-4087
PURE UUID: 2eb1e2f0-302c-4e6f-ad92-bafcb2846d7f

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Date deposited: 23 Feb 2007
Last modified: 02 Dec 2019 21:05

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Contributors

Author: G.T. Reed
Author: W.R. Headley
Author: B. Timotijevic
Author: V.M.N. Passaro
Author: G. Ensell
Author: R. Atta
Author: A. Evans

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