Title :
Simulation and experimental demonstration of coherent OCDMA using spectral line pairing and heterodyne detection
Author :
Yi Yang ; Petrillo, Keith G. ; Hong-Fu Ting ; Khurgin, Jacob B. ; Cooper, A. Brinton ; Foster, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
A fully coherent optical code-division multiple access (OCDMA) scheme that combines spectral phase encoding (SPE) and spectral line pairing to generate signals through heterodyne decoding is proposed. A simple balanced receiver performs sourceless heterodyne detection, canceling speckle noise and multiple-access interference (MAI). A 16 user 100% load system transmitting at 40 Gbits is simulated, and a 4 user 50% load system transmitting at 4.25 Gbit/s is experimentally demonstrated for the first time.
Keywords :
code division multiple access; optical fibre communication; optical receivers; MAI; balanced receiver; bit rate 4.2 Gbit/s; bit rate 40 Gbit/s; fully coherent OCDMA scheme; fully coherent optical code-division multiple access scheme; heterodyne detection; load system; multiple-access interference; speckle noise cancellation; spectral line pairing; Adaptive optics; Detectors; Encoding; Noise; Optical filters; Optical mixing; Optical network units; OCDMA; Optical fiber communication; heterodyne detection; multiple access interference;
Conference_Titel :
Information Sciences and Systems (CISS), 2013 47th Annual Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4673-5237-6
Electronic_ISBN :
978-1-4673-5238-3
DOI :
10.1109/CISS.2013.6552307
