Suppressing the Nonlinearity of Free Running VCSEL Using Selective-Optical Feedback

Nazhan, Salam, Ghassemlooy, Zabih, Busawon, Krishna and Gholami, Asghar (2016) Suppressing the Nonlinearity of Free Running VCSEL Using Selective-Optical Feedback. IEEE Photonics Technology Letters, 28 (2). pp. 185-188. ISSN 1041-1135

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Official URL: http://dx.doi.org/10.1109/LPT.2015.2489467

Abstract

In this letter, the nonlinear dynamics of a vertical-cavity surface-emitting laser (VCSEL) subjected to the optical feedback and a modulation signal is investigated experimentally. For this purpose, orthogonal polarization optical feedback (OOF) and parallel polarization optical feedback, which are defined by a T-shaped feedback scheme, are employed. The result obtained show that the nonlinearity of the VCSEL is entirely supressed and the 3-dB bandwidth is enhanced with the OOF. We show that the harmonics distortions are significantly improved with the $2^{mathrm {nd}}$ , $3^{mathrm {rd}}$ , and $4^{mathrm {th}}$ harmonics components of the VCSEL’s polarization modes reduced to the noise floor. Essentially, the OOF is proposed as a new tool to improve the linear dynamic range and the analogue performance of the VCSEL.

Item Type: Article
Uncontrolled Keywords: Nonlinearity, current modulation, nonlinearity, selective-optical feedback, vertical-cavity surface emitting lasers (VCSELs)
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 15 Jan 2016 12:30
Last Modified: 24 Oct 2017 08:52
URI: http://nrl.northumbria.ac.uk/id/eprint/25470

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