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Experimental investigation of polarisation rotation in semiconductor optical amplifiers

Kennedy, Brendan F. orcid logoORCID: 0000-0003-4782-0498, Philippe, Severine, Landais, Pascal orcid logoORCID: 0000-0002-4807-0695, Bradley, Ann Louise orcid logoORCID: 0000-0002-9399-8628 and Soto-Ortiz, Horacio (2004) Experimental investigation of polarisation rotation in semiconductor optical amplifiers. Optoelectronics, 151 (2). pp. 114-118. ISSN 1350-2433

Abstract
An experimental study of polarisation rotation in a semiconductor optical amplifier is presented. Two techniques are used to investigate the gain and birefringence along the two eigenmodes of the component waveguide, with and without injection. The first investigation is based on the residual reflectivity of the facet mirrors. From the modulation depth of polarisation resolved spectra, the gain and the refractive indices of these modes are determined. The second investigation takes into account the variation of the eigenmode gain and refractive indices as a function of injected power over the range 83.3 to 413 mW. The results of these two experiments are compared, and it is determined that the refractive index and the single-pass gain along the horizontal axis of the waveguide are higher than those along the vertical axis. Both gain and refractive index differences increase as a function of injected power in the sample under test. Furthermore, it is concluded that polarisation rotation in this component is heavily influenced by the power dependence of the relative gain in the TE and TM modes and birefringence.
Metadata
Item Type:Article (Published)
Refereed:Yes
Uncontrolled Keywords:light polarisation; infrared spectra; optical rotation; semiconductor optical amplifiers; birefringence; optical waveguides; reflectivity; mirrors; optical modulation; refractive index
Subjects:Engineering > Optical communication
Physical Sciences > Photonics
Physical Sciences > Semiconductors
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Research Institutes and Centres > Research Institute for Networks and Communications Engineering (RINCE)
Publisher:Institution of Engineering and Technology
Official URL:http://dx.doi.org/10.1049/ip-opt:20040287
Copyright Information:© 2004 IEEE.
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Enterprise Ireland under the Research Innovation Fund, Irish Research Council for Science, Engineering and Technology
ID Code:24824
Deposited On:20 Jul 2020 13:44 by Pascal Landais . Last Modified 01 Mar 2023 14:02
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