Year-end Sale % OFF 
Abstract
A demonstration of an 850-nm vertical cavity surface emitting laser (VCSEL) based 200-Gb/s PAM-4 transmission over 100-m OM4 multimode fiber (MMF) is presented. To overcome the large Inter-symbol Interference (ISI) caused by bandwidth limitation and to compensate the non-linearity caused by optics, we propose to combine noise cancellation algorithm, partial response signaling and simplified Volterra nonlinear equalizer (NLE) in the digital signal processing (DSP). A power margin about 4 dB for 50-m MMF transmission and 3 dB for 100-m MMF transmission is observed. Different DSP configurations are also experimentally evaluated. The use of the simplified Volterra NLE enables the BER to be improved from 2×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">- 2</sup> to 1.1×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">- 3</sup> . A 2.5 dB power margin improvement is also achieved by employing the noise cancellation module.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
