US 11,990,941 B2
Systems and methods for analog electronic polarization control for coherent optical receivers
Charles John Razzell, Pleasanton, CA (US)
Assigned to MAXIM INTEGRATED PRODUCTS, INC., San Jose, CA (US)
Filed by Maxim Integrated Products, Inc., San Jose, CA (US)
Filed on Jun. 25, 2020, as Appl. No. 16/911,395.
Application 16/911,395 is a continuation in part of application No. 16/379,302, filed on Apr. 9, 2019, granted, now 10,735,104.
Claims priority of provisional application 62/668,643, filed on May 8, 2018.
Prior Publication US 2020/0328818 A1, Oct. 15, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 10/61 (2013.01)
CPC H04B 10/6166 (2013.01) [H04B 10/614 (2013.01); H04B 10/6151 (2013.01); H04B 10/6162 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for processing signals in an analog polarization controller, the method comprising:
using a first set of amplifiers associated with a first polarization signal to perform a first set of operations corresponding to a multiplication by a first coefficient; and
using a second set of amplifiers associated with a second polarization signal to perform a second set of operations corresponding to a multiplication by a second coefficient, thereby rotating the first polarization signal by a first phase angle relative to the second polarization signal that has a second phase angle.