Dimitris Uzunidis
ABSTRACT
Bandwidth requirements double up every three years. The main amount of this traffic is carried out by optical networks which form the backbone of communication systems. Accordingly, the optical fiber is the most efficient communication channel since it provides large bandwidth - 5 THz for C-band and more than 20 THz if S and L-bands are loaded - and due to its low loss the data can be transmitted over thousands of kilometers without regeneration. Nevertheless, to achieve such enormous capacity in the field not only requires sophisticated technology but also precise theoretical study. Using analytical models we can easily calculate system performance and optimize any of the physical layer parameters depending on what is required each time. Regarding coherent optical systems the amplified spontaneous emission (ASE) noise and four wave mixing (FWM) are the main effects that degrade system performance. Assuming that both ASE noise and FWM crosstalk give Gaussian characteristics to the signal after optical transmission, we can easily calculate BER by simply adding their powers. In this paper, using a recently introduced analytical model we provide simple rules to optimize channel power, system capacity, system length and amplifier placement in order not only to maximize system throughput but also to minimize optical components such as optical amplifiers given a target performance.
- D. Qian, M.-F. Huang, E. Ip, Y. Huang, Y. Shao, J. Hu, and T. Wang, "101.7-Tb/s (370×294-Gb/s) PDM-128QAM-OFDM Transmission over 3×55-km SSMF using Pilot-based Phase Noise Mitigation," in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference, 2011.Google Scholar
- A. Sano, T. Kobayashi, S. Yamanaka, A. Matsuura, H. Kawakami, Y. Miyamoto, K. Ishihara, and H. Masuda, "102.3-Tb/s (224 x 548-Gb/s) C- and Extended L-band All-Raman Transmission over 240 km Using PDM-64QAM Single Carrier FDM with Digital Pilot Tone," in National Fiber Optic Engineers Conference, 2012.Google Scholar
- J. Cai, C. R. Davidson, A. Lucero, H. Zhang, D. G. Foursa, O. V Sinkin, W. W. Patterson, A. N. Pilipetskii, G. Mohs, and N. S. Bergano, "20 Tbit/s Transmission Over 6860 km With Sub-Nyquist Channel Spacing," J. Light. Technol., vol. 30, no. 4, pp. 651--657, Feb. 2012.Google ScholarCross Ref
- T. Morioka, M. Jinno, and H. Takara, "Innovative Future Optical Transport Network Technologies."Google Scholar
- A. Carena, G. Bosco, V. Curri, P. Poggiolini, M. T. Taiba, and F. Forghieri, "Statistical characterization of PM-QPSK signals after propagation in uncompensated fiber links," 36th Eur. Conf. Exhib. Opt. Commun., Sep. 2010.Google Scholar
- X. Chen and W. Shieh, "Closed-form expressions for nonlinear transmission performance of densely spaced coherent optical OFDM systems.," Opt. Express, vol. 18, no. 18, pp. 19039--54, Aug. 2010.Google ScholarCross Ref
- P. Poggiolini, G. Bosco, S. Member, A. Carena, V. Curri, Y. Jiang, and F. Forghieri, "The GN-Model of Fiber Non-Linear Propagation and its Applications," vol. 32, no. 4, pp. 694--721, 2014.Google Scholar
- D. Uzunidis, C. Matrakidis, and A. Stavdas, "Simplified model for nonlinear noise calculation in coherent optical OFDM systems," Opt. Express, vol. 22, no. 23, pp. 28316--26, Nov. 2014.Google ScholarCross Ref
- D. Uzunidis, C. Matrakidis, and A. Stavdas, "An improved model for estimating the impact of FWM in coherent optical systems," Opt. Commun., vol. 378, pp. 22--27, Nov. 2016.Google ScholarCross Ref
- G. Glentis, C. T. Politi, C. Matrakidis, M. Nanou, D. Uzunidis, K. Georgoulakis, and A. Stavdas, "Cost-effective adaptive optical network technologies for Metropolitan Area Networks," in nternational Conference on Transparent Optical Networks (ICTON), 2014,Google Scholar
- M. Nanou, C. (Tanya) Politi, A. Stavdas, G.-O. Glentis, K. Georgoulakis, A. Emeretlis, and G. Theodoridis, "Cost-effective optical transponders for deployed metropolitan area networks," Opt. Commun., vol. 380, pp. 201--213, Dec. 2016.Google ScholarCross Ref
- V. J. Urick, J. X. Qiu, and F. Bucholtz, "Wide-Band QAM-Over-Fiber Using Phase Modulation and Interferometric Demodulation," IEEE Photonics Technol. Lett., vol. 16, no. 10, pp. 2374--2376, Oct. 2004.Google ScholarCross Ref
- D. Rafique, "Fiber Nonlinearity Compensation: Commercial Applications and Complexity Analysis," J. Light. Technol., vol. 34, no. 2, pp. 544--553, Jan. 2016.Google ScholarCross Ref
Index Terms
- Optimizing power, capacity, transmission reach and amplifier placement in coherent optical systems using a physical layer model
Recommendations
Comparison of simplified FWM expressions for coherent optical systems in both dispersion managed and un-managed fiber links
PCI '16: Proceedings of the 20th Pan-Hellenic Conference on InformaticsFour Wave Mixing (FWM) is the dominant nonlinearity in coherent optical systems limiting transmission performance. Calculating the power of FWM along a fiber link enables us to estimate system performance and maximize fiber capacity. The latter is of ...
Reach extendibility of passive optical network technologies
Fiber to The Home (FTTH) Passive Optical Networks (PONs) are becoming popular because of their ability to accommodate the varying demands of the users regarding, voice, data and multimedia services. This paper compares, analyzes and proposes a method to ...
Long-haul Coherent Optical OFDM Point-to-Point Transmission using Optical Phase Conjugation
ICETE 2016: Proceedings of the 13th International Joint Conference on e-Business and TelecommunicationsIn this paper, we demonstrate the superchannel polarization division multiplexed coherent optical orthogonal frequency-division Multiplexing (PDM-CO-OFDM) system employing midway optical phase conjugation (OPC). The system is designed to show the ...
Comments