Optical Tech, LLC filed its inaugural round of infringement suits. The NPE sued Alcatel-Lucent, Cisco, and Juniper Networks for alleged infringement of a patent related to a method for improving bandwidth efficacy in an optical signal using electrical signal processing (7,747,172). In three separate complaints, Optical Tech accuses defendants’ optical networks and components (including routers and switches) of infringing the ‘172 patent. This appears to be the first time the patent has been litigated.