title: Heterodyne detection using spectral line pairing for spectral phase encoding optical code division multiple access and dynamic dispersion compensation.
abstract: A novel coherent optical code-division multiple access (OCDMA) scheme is proposed that uses spectral line pairing to generate signals suitable for heterodyne decoding. Both signal and local reference are transmitted via a single optical fiber and a simple balanced receiver performs sourceless heterodyne detection, canceling speckle noise and multiple-access interference (MAI). To validate the idea, a 16 user fully loaded phase encoded system is simulated. Effects of fiber dispersion on system performance are studied as well. Both second and third order dispersion management is achieved by using a spectral phase encoder to adjust phase shifts of spectral components at the optical network unit (ONU).
authors.affiliation: Department of Electrical and Computer Engineering, The Johns Hopkins University 3400 N. Charles St, Barton 105, Baltimore, Maryland 21218, USA. yyang30@jhu.edu
authors.forename: Yi
authors.initials: Y
authors.lastname: Yang
authors.forename: Mark
authors.initials: M
authors.lastname: Foster
authors.forename: Jacob B
authors.initials: JB
authors.lastname: Khurgin
authors.forename: A Brinton
authors.initials: AB
authors.lastname: Cooper