SOA-NOLM Based Device for Increasing the Extinction Ratio and Attenuation of Unmodulated Content of an Optical Carrier

Beatriz A. Ribeiro, Fátima L. D. Soares, Ricardo M. Ribeiro, Vinicius N. H. Silva

DOI: 10.14209/sbrt.2017.117

Evento: XXXV Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2017)

Keywords: Suppression of Optical Carrier Semiconductor Optical Amplifier NOLM Extinction Ratio

Abstract

This paper describes the experimental demonstration of a fibre-optic device able to attenuate the unmodulated content and simultaneously enhances the extinction ratio (ER) of an optical carrier. The main aim is to show the proof-of-concept. The active device configuration is based on a Nonlinear Optical Loop Mirror (NOLM) incorporating a Semiconductor Optical Amplifier (SOA) as a compact non-linear element. Results show a 14.6 dB increase of extinction ratio (ER). The unmodulated optical offset could be reduced by 11.2 dB.

Download