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Compensation of modulators nonlinearities for higher order modulation formats
Author(s): L. Chorchos
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Paper Abstract

In this paper, a study of the influence and compensation of electroabsorption and Mach-Zehnder modulator non-linarites is made for the PAM-4, PAM-5 and PAM-8 modulation formats. The compensation is made with a level adjustment by a digital to analog converter (DAC) for which number of bits exceeds the minimal requirements for evaluated modulation schemes. As figures of merit, the level distribution and eye-opening corresponding to each level is used. The results show that compensation increases the signal quality by leveraging the modulator’s static extinction ratio.

Paper Details

Date Published: 1 February 2019
PDF: 8 pages
Proc. SPIE 10946, Metro and Data Center Optical Networks and Short-Reach Links II, 109460L (1 February 2019); doi: 10.1117/12.2509809
Show Author Affiliations
L. Chorchos, Warsaw Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 10946:
Metro and Data Center Optical Networks and Short-Reach Links II
Atul K. Srivastava; Madeleine Glick; Youichi Akasaka, Editor(s)

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