Kottke, Christoph Coherent UDWDM PON with joint subcarrier reception at OLT. [electronic resource] - Optics express Jul 2014 - 16876-88 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1094-4087 Standard No.: 10.1364/OE.22.016876 doi