ALEXANDRIA, Va., April 22 -- Acacia Communications, Maynard, Massachusetts, has been assigned a patent (9,628,186) developed by Diedrik Vermeulen, Maynard, Massachusetts, for the "advanced optical modulation generation by combining orthogonal polarized optical signals."

The patent application was filed on Nov. 11, 2014 (14/538,781). The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnu . . .