Patent 9749060 was granted and assigned to Juniper Networks on August, 2017 by the United States Patent and Trademark Office.
Techniques are described for characterizing a receiver front end of a pluggable optical module. The pluggable optical module receives an optical signal that includes a first portion having a first polarization and a second portion having a second polarization. The first portion and second portion are not coherent with one another and the power of the first portion and second portion is equal.