Title :
Four-user, 2.5-Gb/s, spectrally coded OCDMA system demonstration using low-power nonlinear processing
Author :
Jiang, Z. ; Seo, D.S. ; Yang, S.-D. ; Leaird, D.E. ; Roussev, R.V. ; Langrock, C. ; Fejer, M.M. ; Weiner, A.M.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
This paper describes the demonstration of 2.5-Gb/s four-user optical-code-division-multiple-access (OCDMA) system operating at bit-error rate /spl les/10/sup -11/ utilizing programmable spectral phase encoding, an ultrasensitive (/spl sim/200 fJ/b) periodically poled lithium-niobate-waveguide nonlinear waveform discriminator and 10G Ethernet receiver. A comprehensive description of this ultra-short-pulse spectral phase-coded OCDMA system is presented. On the subsystem level, two key component technologies, namely, femtosecond encoding/decoding and low-power high-contrast nonlinear discrimination, have been developed and characterized. At the system level, data for the four-user OCDMA system operating at 2.5 Gb/s for binary as well as multilevel code families are described.
Keywords :
code division multiple access; code division multiplexing; decoding; high-speed optical techniques; nonlinear optics; optical fibre LAN; optical information processing; optical receivers; optical waveguides; phase coding; 2.5 Gbit/s; Ethernet receiver; LiNbO/sub 3/; binary code families; bit-error rate; femtosecond encoding/decoding; four-user OCDMA system; high-contrast discrimination; low-power processing; multilevel code families; nonlinear processing; nonlinear waveform discriminator; optical-code-division-multiple-access; periodically poled lithium-niobate-waveguide; phase-coded OCDMA system; programmable spectral phase encoding; spectrally coded system; ultrashort-pulse system; Bit error rate; Fiber nonlinear optics; High speed optical techniques; Multiaccess communication; Nonlinear optics; Optical pulse shaping; Optical receivers; Optical signal processing; Radio frequency; Ultrafast optics; Multiaccess interference (MAI); nonlinear optics; optical code-division multiple access (OCDMA); optical signal processing; pulse shaping;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2004.840039
