Performance analysis of coherently detected orthogonal wavelength division multiplexing scheme

In this paper, a highly spectrally efficient scheme orthogonal wavelength division multiplexing with coherent detection (Co-OWDM) is analyzed. We study the effect of channel spacing on inter-channel crosstalk induced power penalty and on decision threshold Q-factor; effect of number of channels on Q...

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Bibliographic Details
Published in:Optik (Stuttgart) 2013-09, Vol.124 (17), p.2758-2763
Main Authors: Negi, C.M.S., Khan, Irfan A., Soni, Gireesh G., Gupta, Saral K., Kumar, Jitendra
Format: Article
Language:English
Subjects:
Bit error rate
Coherent detection
Crosstalk
Orthogonal wavelength division multiplexing (OWDM)
Power penalty
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Summary:In this paper, a highly spectrally efficient scheme orthogonal wavelength division multiplexing with coherent detection (Co-OWDM) is analyzed. We study the effect of channel spacing on inter-channel crosstalk induced power penalty and on decision threshold Q-factor; effect of number of channels on Q-factor is also discussed. Results obtained with coherent detection are compared with direct detection technique. We also analyzed Co-OWDM with quadrature phase shift keying (QPSK) technique, passive micro-optics based 90° optic is used for coherent detection in this technique. QPSK based Co-OWDM system performance is analyzed in terms of bit error rate (BER) and quality factor.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2012.08.044