Patent ID: 9031419
Filing Date: 2015-05-12
Classification: H04B,H04J

Abstract:
1. A method of recovering a data signal from a space division multiplexed multi-spatial mode optical signal comprising: separating the space division multiplexed multi-spatial mode optical signal into a plurality of branch signals having a common wavelength, the plurality of branch signals corresponding to signals having the common wavelength, the signals having the common wavelength being received on different spatial modes of the multi-spatial mode media, the space division multiplexed multi-spatial mode optical signal being received over a multi-spatial mode media; mixing the plurality of branch signals with a plurality of optical carrier waves having the common wavelength; converting the plurality of branch signals mixed with the plurality of optical carrier waves into a plurality of data sub-signals having the common wavelength, the plurality of data sub-signals comprising in-phase Y polarization components, quadrature Y polarization components, in-phase X polarization components, and quadrature X polarization components; and recovering the data signal by combining the plurality of data sub-signals.