Coherent Optical CDMA with low MAI

Abstract. Spectrally phase-coded optical code division multiple access (OCDMA), demodulated with phase and polarization diversity devices, exhibits high spectral efficiency and low Multiple Access Interference (MAI). Use in a passive optical network (PON) is discussed. c Optical Society of America OCIS codes: (060.2330) Fiber Optics Communications; OCDMA offers great promise for high-capacity, secure, and flexible fiber optic communication, but performance remains suboptimal because of speckle noise, optical time gating, and nonlinear detection. A recently proposed [1] new method for interference-cancelling, phase coherent demodulation of spectrally encoded OCDMA potentially achieves high spectral efficiency and low MAI without using expensive nonlinear optical devices or phase locked loops. The salient features of our new architecture (Figs. 1, 2) are that it uses just one master laser and two fibers to achieve all network operations, including upstream and downstream communicatio...

• Type: Conference
• Year: 2007
• Where: CISS
• Authors: A. Brinton Cooper, Jacob B. Khurgin, Shuangmei Xu, Jin U. Kang
• Keywords: CISS 2007, Optical, Optical Network, Passive Optical Networks