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Proceedings Paper

Detection and compensation of power imbalances for DP-QAM transmitter using reconfigurable interference
Author(s): Yang Yue; Qiang Wang; Bo Zhang; Andre Vovan; Jon Anderson
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Paper Abstract

DP-QAM is one of the most promising paths towards 400-Gb/s and 1-Tb/s commercial optical communications systems. For DP-QAM transmitter, different tributary channel powers lead to IQ or XY power imbalance. Large uncompensated IQ or XY power imbalance can significantly degrade the performance in the coherent optical communications system. In this work, we propose and experimentally demonstrate a technique to detect and compensate DP-QAM transmitter power imbalances for tributary channels. By reconfigurably interfering de-skewed identical BPSK channels, the optical powers of any two tributaries can be balanced by minimizing the output power from their optical interference.

Paper Details

Date Published: 28 January 2017
PDF: 6 pages
Proc. SPIE 10130, Next-Generation Optical Communication: Components, Sub-Systems, and Systems VI, 101300M (28 January 2017); doi: 10.1117/12.2251036
Show Author Affiliations
Yang Yue, Juniper Networks, Inc. (United States)
Qiang Wang, Juniper Networks, Inc. (United States)
Bo Zhang, Juniper Networks, Inc. (United States)
Andre Vovan, Juniper Networks, Inc. (United States)
Jon Anderson, Juniper Networks, Inc. (United States)

Published in SPIE Proceedings Vol. 10130:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems VI
Guifang Li; Xiang Zhou, Editor(s)

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