Abstract

In this paper, we experimentally demonstrate the first 110-Gb/s multi-band superchannel coherent optical orthogonal frequency-division multiplexing based on offset quadrature amplitude modulation (OFDM/OQAM) system. Unlike the conventional orthogonal band-multiplexed OFDM system, no timing or frequency synchronization is required for the OFDM/OQAM system. We further investigate the influence of guard band, and find that very trivial guard band spacing (<20MHz) is required without any sensitivity performance or spectral efficiency degradation. Thus, the newly designed scheme would significantly reduce the implementation constrains for the band-multiplexed superchannel coherent optical OFDM system.

© 2013 Optical Society of America

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References

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2013 (1)

2012 (1)

2011 (2)

2009 (1)

2008 (3)

2006 (1)

W. Shieh and C. Athaudage, “Coherent optical orthogonal frequency division multiplexing,” Electron. Lett. 42(10), 587–589 (2006).
[Crossref]

2001 (1)

L. Vangelista and N. Laurenti, “Efficient implementations and alternative architectures for OFDM-OQAM systems,” IEEE Trans. Commun. 49(4), 664–675 (2001).
[Crossref]

1998 (1)

K. W. Martin, “Small side-lobe filter design for multitone data-communication applications,” IEEE Trans. Circuits Syst. II 45(8), 1155–1161 (1998).
[Crossref]

Amini, P.

P. Amini, R. Kempter, and B. Farhang-Boroujeny, “A comparison of alternative filterbank multicarrier methods in cognitive radio systems” in Proc. SDRTC' 2006.

Athaudage, C.

W. Shieh and C. Athaudage, “Coherent optical orthogonal frequency division multiplexing,” Electron. Lett. 42(10), 587–589 (2006).
[Crossref]

Barros, D. J.

Behrouz, F. B.

F. B. Behrouz and R. Kempter, “Multicarrier communication techniques for spectrum sensing and communication in cognitive radios,” IEEE Commun. Mag. 46(4), 80–85 (2008).
[Crossref]

Borel, P. I.

Bourdoux, A.

Carlson, K.

Chandrasekhar, S.

Ellis, A. D.

Emplit, P.

Farhang-Boroujeny, B.

P. Amini, R. Kempter, and B. Farhang-Boroujeny, “A comparison of alternative filterbank multicarrier methods in cognitive radio systems” in Proc. SDRTC' 2006.

Fickers, J.

Gnauck, A. H.

Horlin, F.

Ip, E.

Isaac, R.

Kahn, J. M.

Kempter, R.

F. B. Behrouz and R. Kempter, “Multicarrier communication techniques for spectrum sensing and communication in cognitive radios,” IEEE Commun. Mag. 46(4), 80–85 (2008).
[Crossref]

P. Amini, R. Kempter, and B. Farhang-Boroujeny, “A comparison of alternative filterbank multicarrier methods in cognitive radio systems” in Proc. SDRTC' 2006.

Lau, A. P.

Laurenti, N.

L. Vangelista and N. Laurenti, “Efficient implementations and alternative architectures for OFDM-OQAM systems,” IEEE Trans. Commun. 49(4), 664–675 (2001).
[Crossref]

Liu, X.

Louveaux, J.

Ma, Y.

Magill, P.

Martin, K. W.

K. W. Martin, “Small side-lobe filter design for multitone data-communication applications,” IEEE Trans. Circuits Syst. II 45(8), 1155–1161 (1998).
[Crossref]

Nelson, L. E.

Peckham, D. W.

Shieh, W.

Tang, Y.

Vangelista, L.

L. Vangelista and N. Laurenti, “Efficient implementations and alternative architectures for OFDM-OQAM systems,” IEEE Trans. Commun. 49(4), 664–675 (2001).
[Crossref]

Winzer, P. J.

Yang, Q.

Zhao, J.

Zhou, X.

Zhu, B.

Electron. Lett. (1)

W. Shieh and C. Athaudage, “Coherent optical orthogonal frequency division multiplexing,” Electron. Lett. 42(10), 587–589 (2006).
[Crossref]

IEEE Commun. Mag. (1)

F. B. Behrouz and R. Kempter, “Multicarrier communication techniques for spectrum sensing and communication in cognitive radios,” IEEE Commun. Mag. 46(4), 80–85 (2008).
[Crossref]

IEEE Trans. Circuits Syst. II (1)

K. W. Martin, “Small side-lobe filter design for multitone data-communication applications,” IEEE Trans. Circuits Syst. II 45(8), 1155–1161 (1998).
[Crossref]

IEEE Trans. Commun. (1)

L. Vangelista and N. Laurenti, “Efficient implementations and alternative architectures for OFDM-OQAM systems,” IEEE Trans. Commun. 49(4), 664–675 (2001).
[Crossref]

J. Lightwave Technol. (3)

Opt. Express (3)

Opt. Lett. (1)

Other (6)

S. Randel, A. Sierra, X. Liu, S. Chandrasekhar, and P. J. Winzer, “Study of multicarrier offset-QAM for spectrally efficient coherent optical communications” in Proceedings of ECOC'2011, paper Th.11.A.1.

Y. Cai, J. X. Cai, C. R. Davidson, D. Foursa, A. Lucero, O. Sinkin, A. Pilipetskii, G. Mohs, and N. S. Bergano, “High spectral efficiency long-haul transmission with pre-filtering and maximum a posteriori probability detection” in Proceedings of ECOC 2010, We.7.C.4.

C. Laperle, “Advances in high-speed ADC, DAC, and DSP for Optical Transceivers” in Proceedings of OFC'2013, paper OTh1F.5.
[Crossref]

P. Amini, R. Kempter, and B. Farhang-Boroujeny, “A comparison of alternative filterbank multicarrier methods in cognitive radio systems” in Proc. SDRTC' 2006.

D. Chen, D. Qu, and T. Jiang, “Novel prototype filter design for FBMC based cognitive radio systems through direct optimization of filter coefficients” in Proc. WCSP'2010.
[Crossref]

K. Arya and C. Vijaykumar, “Elimination of Cyclic Prefix of OFDM systems using filter bank based multicarrier systems” in TENCON IEEE Region 10 Conference. IEEE, 2008.

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Figures (9)

Fig. 1
Fig. 1 Principle of OFDM/OQAM.

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Fig. 2
Fig. 2 (a) time and frequency domain impulse response; (b) frequency spectra for conventional OFDM and OFDM/OQAM.

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Fig. 3
Fig. 3 Experimental setup of back-to-back measurement for polarization-division multiplexed OFDM/OQAM system.

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Fig. 4
Fig. 4 BER versus OSNR measurement for OFDM/OQAM and the conventional OFDM schemes at back-to-back.

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Fig. 5
Fig. 5 Experimental setup for unsynchronized multi-band OFDM/OQAM at back-to-back.

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Fig. 6
Fig. 6 The received spectra of the three unsynchronized bands.

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Fig. 7
Fig. 7 Q-factor at the edge subcarrier as a function of guard band at back-to-back.

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Fig. 8
Fig. 8 The experimental setup for 110Gb/s OFDM/OQAM superchannel transmission .

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Fig. 9
Fig. 9 BER versus OSNR for 110.25 Gb/s OFDM/OQAM superchannel at back-to-back.

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Equations (9)

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x k (n)= s k I (n)+j s k Q (n) ,
y(t)= ∑ k=0 N−1 ∑ n=0 +∞ [ s k I (n)⋅h(t−nT)+j s k Q (n)⋅h(t−nT− T 2 ) ] ⋅ e jk φ t ,
r k (n)= s ⌢ k I (n)+j s ⌢ k Q (n) ,
s ⌢ k I (n)= ∑ n ′ =−∞ +∞ ∑ k ′ =0 N−1 ∫ −∞ +∞ h(nT−t)  ×{ s k ′ I ( n )h(t− n ′ T)cos[ ( k ′ −k ) φ t ]             − s k ′ Q ( n )h(t− n ′ T−T/2)sin[ ( k ′ −k ) φ t ] }dt ,
s ⌢ k Q (n)= ∑ n ′ =−∞ +∞ ∑ k ′ =0 N−1 ∫ −∞ +∞ h(nT−t+T/2) ×{ s k ′ I ( n )h(t− n ′ T)sin[ ( k ′ −k ) φ t ]             − s k ′ Q ( n )h(t− n ′ T−T/2)cos[ ( k ′ −k ) φ t ] }dt .
∫ -∞ +∞ h( t− n ′ T ) h( nT−t )cos[ ( k ′ −k ) φ t ]dt=δ( k ′ −k, n ′ −n ) ,
∫ -∞ +∞ h( t− n ′ T−T/2 ) h( nT−t )sin[ ( k ′ −k ) φ t ]dt=0 ,
∫ -∞ +∞ h( t− n ′ T ) h( nT−t+T/2 )sin[ ( k ′ −k ) φ t ]dt=0 ,
∫ -∞ +∞ h( t− n ′ T−T/2 ) h( nT−t+T/2 )cos[ ( k ′ −k ) φ t ]dt=δ( k ′ −k, n ′ −n ) .

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