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Four-user, 2.5-Gb/s, spectrally coded OCDMA system demonstration using low-power nonlinear processing

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8 Author(s)
Jiang, Z. ; Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA ; Seo, D.S. ; Yang, S.-D. ; Leaird, D.E.
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This paper describes the demonstration of 2.5-Gb/s four-user optical-code-division-multiple-access (OCDMA) system operating at bit-error rate ≤10-11 utilizing programmable spectral phase encoding, an ultrasensitive (∼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.

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Lightwave Technology, Journal of  (Volume:23 ,  Issue: 1 )