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Proceedings Paper

16 DWDM channels optoelectronic 3R NRZ-to-RZ regenerative format conversions based on single phase modulator
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Paper Abstract

We propose and demonstrate simultaneous multiple dense wavelength division multiplexing (DWDM) channels optoelectronic non-return-to-zero (NRZ) to return-to-zero (RZ) regenerative format conversions based on a single phase modulator (PM) and a fibre delay-interferometer (DI). The PM is driven by a local RF clock signal, and the DI with free spectral range (FSR) equals to the channel spacing is used to extract the chirps induced by the phase modulation, for all the channels at the same time. Since the original carriers are suppressed to some extent while the chirps are extracted, thus the NRZ-to-RZ conversions can be achieved with regeneration. The proposed multi-channels format conversions are successfully demonstrated at 16*10 Gb/s, with channel spacing of 100GHz. Bit error ratio (BER) measurements show 3.5 and 4.2 dB penalty improvements for 50 and 75 km transmission without dispersion compensation, respectively.

Paper Details

Date Published: 11 November 2008
PDF: 8 pages
Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 71360Q (11 November 2008); doi: 10.1117/12.804019
Show Author Affiliations
Y. Yu, Univ. of Cambridge (United Kingdom)
Huazhong Univ. of Science and Technology (China)
J. B. Rosas-Fernández, Univ. of Cambridge (United Kingdom)
X. Zhang, Huazhong Univ. of Science and Technology (China)
D. Huang, Huazhong Univ. of Science and Technology (China)
R. V. Penty, Univ. of Cambridge (United Kingdom)
I. H. White, Univ. of Cambridge (United Kingdom)


Published in SPIE Proceedings Vol. 7136:
Optical Transmission, Switching, and Subsystems VI
Ken-ichi Kitayama; Pierpaolo C. Ghiggino; Kim Roberts; Yikai Su, Editor(s)

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