Journal article · Ahead of Print article
Enhanced Modal Dispersion Estimation Enabled by Chromatic Dispersion Compensation in Optical Vector Network Analysis
Component characterization is fundamental for understanding the limits of optical devices, sub-systems, and transmission systems. With the introduction of space division multiplexing in optical fiber transmission systems, new impairments, such as mode dependent loss and differential mode dispersion arise.
Spatially-diverse optical vector network analyzers are capable of measuring these characteristics in a fast single sweep over a very large bandwidth. As a result of this large bandwidth, these analyzers are sensitive to differential chromatic dispersion within the interferometric measurement setup. This study discusses the influence and compensation of differential chromatic dispersion in such systems.
Partial chromatic dispersion compensation is demonstrated to improve the representation and accuracy of impulse response measurements obtained from optical vector network analyzers for fibers and components with large differential chromatic dispersion. Analysis of a 39-core few-mode multi-core fiber is discussed, reporting variances of -2.9-0.1 ps/nm, and 0.6-6.9 ps/nm for the two mode groups, respectively, between the few-mode cores.
A correlation with the total impulse response is observed. Furthermore, a maximum propagation skew of 20 ns between cores is observed after 13.6 km.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2019 |
| Pages: | 4001-4007 |
| ISSN: | 15582213 and 07338724 |
| Types: | Journal article and Ahead of Print article |
| DOI: | 10.1109/JLT.2019.2923112 |
| ORCIDs: | Rommel, Simon |
Component analysis Device characterization Differential mode dispersion Mode dependent loss Optical vector network analysis Space division multiplexing
39-core few-mode multicore fiber Delays Dispersion Multicore processing Optical fiber networks Optical interferometry Optical polarization Optical variables measurement device characterization differential chromatic dispersion differential mode dispersion enhanced modal dispersion estimation mode dependent loss network analysers optical devices optical fiber transmission systems optical fibre communication optical fibre dispersion optical fibre polarisation optical vector network analysis partial chromatic dispersion compensation size 13.6 km space division multiplexing spatially-diverse optical vector network analyzers time -2.9 ps to 0.1 ps time 0.6 ps to 6.9 ps time 20.0 ns
