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Proceedings Paper

Logic unit for CSRZ-OOK signals with the capability of simultaneously realizing logic OR and AND gates
Author(s): Bingbing Wu; J. Wu; Lanlan Li; K. Xu; X. Hong; J. Lin
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Paper Abstract

To cope with the development of Carrier-suppressed-return-to-zero-on-off-keying (CSRZ-OOK) modulation format, it is of great significance to investigate all-optical logic gates to process CSRZ-OOK format signals. To the best of our knowledge, for CSRZ-OOK signals, only logic AND gate has been demonstrated while other logic functions haven't been explored until now. In this paper, an all-optical logic unit to process CSRZ-OOK signals based on four-wave mixing (FWM) arising in a semiconductor optical amplifier (SOA) is proposed. A logic OR gate and two logic AND gates with the CSRZ-OOK format unchanged could be simultaneously achieved without reconfiguration in this single unit. The performance of 40 Gb/s logic operation is firstly evaluated with numerical simulations by a comprehensive dynamic model considering three-input induced FWM in an SOA. Then, experimental demonstrations at 10 Gb/s with clear waveforms and high extinction ratios (ERs) further verify the logic integrity of this scheme.

Paper Details

Date Published: 2 December 2009
PDF: 6 pages
Proc. SPIE 7630, Passive Components and Fiber-based Devices VI, 763007 (2 December 2009); doi: 10.1117/12.849518
Show Author Affiliations
Bingbing Wu, Beijing Univ. of Posts and Telecommunications (China)
J. Wu, Beijing Univ. of Posts and Telecommunications (China)
Lanlan Li, Beijing Univ. of Posts and Telecommunications (China)
K. Xu, Beijing Univ. of Posts and Telecommunications (China)
X. Hong, Beijing Univ. of Posts and Telecommunications (China)
J. Lin, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 7630:
Passive Components and Fiber-based Devices VI

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