Simplified adaptively modulated optical OFDM modems using subcarrier modulation with added input/output reconfigurability

Abstract

Three novel designs of adaptively modulated optical orthogonal frequency division multiplexing modems using subcarrier modulation (AMOOFDM-SCM) are proposed, for the first time, each of which requires a single inverse fast Fourier transform/fast Fourier transform (IFFT/FFT) operation. These designs not only significantly simplify the AMOOFDM-SCM modem configurations, but also offer extra unique network features such as input/output reconfigurability. Investigations show that these three modems are capable of supporting more than 60 Gb/s AMOOFDM-SCM signal transmission over 20, 40 and 60 km single mode fibre (SMF)-based intensity modulation and direct detection (IMDD) transmission links without optical amplification and chromatic dispersion compensation.

Keywords

orthogonal frequency division multiplexing (OFDM) / subcarrier modulation (SCM) / single mode fibre (SMF)

References

[1] Tang J M,Shore K A. 30 Gb/s signal transmission over 40-km directly modulated DFB-laser-based single-mode-fiber links without optical amplification and dispersion compensation. Journal of Lightwave Technology, 2006, 24(6): 2318-2327

[2] Shieh W, Bao H, Tang Y. Coherent optical OFDM: theory and design. Optics Express, 2008, 16(2): 841-859

[3] Schmidt B J C, Lowery A J, Armstrong J. Experimental demonstrations of electronic dispersion compensation for long-haul transmission using direct detection optical OFDM. Journal of Lightwave Technology, 2008, 26(1): 196-203

[4] Jin X Q, Tang J M, Spencer P S, Shore K A. Optimization of adaptively modulated optical OFDM modems for multimode fiber-based local area networks. Journal of Optical Networking, 2008, 7(3): 198-214

[5] Hui R, Zhu B, Huang R, Allen C, Demarest K, Richards D. 10 Gb/s SCM fiber system using optical SSB modulation. IEEE Photonics Technology Letters, 2001, 13(8): 896-898

[6] Zheng X, Tang J M, Spencer P S. Transmission performance of adaptively modulated optical OFDM modems using subcarrier modulation over worst-case multimode fibre links. IEEE Communications Letters, 2008, 12(10): 788-790

[7] Zheng X, Wei J L, Tang J M. Transmission performance of adaptively modulated optical OFDM modems using subcarrier modulation over SMF IMDD links for access and metropolitan area networks. Optics Express, 2008, 16(25): 20427-20440

[8] Giddings R P, Jin X Q, Hugues-Salas E, Giacoumidis E, Wei J L, Tang J M. Experimental demonstration of a record high 11.25 Gb/s real-time optical OFDM transceiver supporting 25 km SMF end-to-end transmission in simple IMDD systems. Optics Express, 2010, 18(6): 5541-5555

[9] Jansen S L, Morita I, Schenk T C W, Takeda N, Tanaka H. Coherent optical 25.8 Gb/s OFDM transmission over 4160-km SSMF. Journal of Lightwave Technology, 2008, 26(1): 6-15

[10] Carlson A B, Crilly P B, Rutledge J C. Communication Systems: An Introduction to Signals and Noise in Electrical Communication. 4th ed. New York: McGraw-Hill, Higher Education, 2002

[11] Wei J L, Hamie A, Giddings R P, Tang J M. Semiconductor optical amplifier-enabled intensity modulation of adaptively modulated optical OFDM signals in SMF-based IMDD systems. Journal of Lightwave Technology, 2009, 27(16): 3678-3688

[12] Peng W R, Zhang B, Wu X X, Feng K M, Willner A E, Chi S. Compensation for I/Q imbalances and bias deviation of the Mach-Zehnder modulators in direct-detected optical OFDM systems. IEEE Photonics Technology Letters, 2009, 21(2): 103-105

[13] Wei J L, Yang X L, Giddings R P, Tang J M. Colourless adaptively modulated optical OFDM transmitters using SOA as intensity modulators. Optics Express, 2009, 17(11): 9012-9027

[14] Choi S I, Huh J D. Dynamic bandwidth allocation algorithm for multimedia services over Ethernet PONs. ETRI Journal, 2002, 24(6): 465-468

[15] Lee J H, Choi K M, Moon J H, Lee C H. Seamless upgrades from a TDM-PON with a video overlay to a WDM-PON. Journal of Lightwave Technology, 2009, 27(15): 3116-3123

[16] Tang J M, Lane P M, Shore K A. High-speed transmission of adaptively modulated optical OFDM signals over multimode fibres using directly modulated DFBs. Journal of Lightwave Technology, 2006, 24(1): 429-441

[17] Giacoumidis E, Wei J L, Jin X Q, Tang J M. Improved transmission performance of adaptively modulated optical OFDM signals over directly modulated DFB laser-based IMDD links using adaptive cyclic prefix. Optics Express, 2008, 16(13): 9480-9494

[18] Tang J M, Shore K A. Maximizing the transmission performance of adaptively modulated optical OFDM signals in multimode-fiber links by optimizing analog-to-digital converters. Journal of Lightwave Technology, 2007, 25(3): 787-798

Acknowledgements

This work was partly supported by the European Community’s Seventh Framework Programme (FP7/2007-2013) within the project ICT ALPHA under grant agreement number 212352. The work of Zheng and Wei was supported by the School of Electronic Engineering and the Bangor University.

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg