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Fabrication and measurement of a photonic crystal waveguide integrated with a semiconductor optical amplifier

Cao, T. and Ho, Y.-L. D. and Heard, P. J. and Barry, Liam P. and Kelly, A. E. and Cryan, M. J. (2009) Fabrication and measurement of a photonic crystal waveguide integrated with a semiconductor optical amplifier. Journal of the Optical Society of America B, 26 (4). pp. 768-777. ISSN 0740-3224

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Abstract

A III-V semiconductor photonic crystal (PhC) waveguide is integrated into a semiconductor optical amplifier (SOA); this has the potential to reshape pulses that are distorted and chirped on propagation through the SOA. The PhC waveguide is modeled using the three-dimensional (3D) finite difference time domain (FDTD) method initially for the ideal case of infinite depth holes, and this shows a ministop band close to 1600 nm. The PhC waveguide is then fabricated into a commercial SOA using focused ion beam etching. The optical power measured at the output of the PhC-SOA waveguide shows evidence of a ministop band but with a small stopband depth. More realistic 3D FDTD modeling including effects of finite hole depth and vertical layer structure is then shown to give much better agreement with measured results. Finally predictions are made for the performance of a membrane structure.

Item Type:Article (Published)
Refereed:Yes
Uncontrolled Keywords:integrated optics devices; photonic crystal waveguides;
Subjects:Engineering > Optical communication
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Publisher:Optical Society of America
Official URL:http://dx.doi.org/10.1364/JOSAB.26.000768
Copyright Information:© 2009 Optical Society of America. This paper was published in Journal of the Optical Society of America B and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/JOSAB.26.000768 . Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
ID Code:15588
Deposited On:03 Aug 2010 12:38 by DORAS Administrator. Last Modified 03 Aug 2010 12:38

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