quad-polarization: Performance, complexity, and power dissipation

A computational complexity, power consumption, and receiver sensitivity analysis for three different scenarios for short-range direct detection links is presented: 1) quad-polarization, 2) wavelength division multiplexing (WDM), and 3) parallel optics. Results show that the power consumption penalty associated to the quad-polarization digital signal processing (DSP) is negligibly small. However, the required analog to digital converters account for 47.6% of the total system power consumption. Transmission of 4x32 Gbps over 2 km standard single mode fiber is achieved with a receiver sensitivity of 4.4 dBm. © 2015 Optical Society of America OCIS codes: (060.0060) Fiber optics and optical communications; (060.2360) Fiber optics links and subsystem; (060.4260) Multiplexing. References and links 1. R. Vasan, “A venture perspective on cloud computing,” Computer 44(3), 60–62 (2011). 2. T. Zuo, A. Tatarczak, M. Iglesias Olmedo, J. M. Estaran, J. B. Jensen, Q. Zhong, X. Xu, and I. Tafur Monroy, “O-band 400 Gbit/s client side optical transmission link,” in Optical Fiber Communication Conference, OSA Technical Digest (online) (Optical Society of America, 2014), paper M2E.4. 3. J. Wei, Q. Cheng, R. V. Penty, I. H. White, and D. G. Cunningham, “400 Gigabit Ethernet using advanced modulation formats: performance, complexity, and power dissipation,” IEEE Commun. Mag. 53, 182–189 (2015). 4. H. Griesser, A. Dochhan, and J. P. Elbers, “DSP-enhanced transmission for 100G+ DWDM data center interconnects,” in Advanced Photonics for Communications, OSA Technical Digest (online) (Optical Society of America, 2014), paper ST1D.4. 5. M. Iglesias Olmedo, T. Zuo, J. B. Jensen, Q. Zhong, X. Xu, S. Popov, and I. Tafur Monroy, “Multiband carrierless amplitude phase modulation for high capacity optical data links,” J. Lightwave Technol. 32, 798–804 (2014). 6. D. Qian, N, Cviketic, J. Hu, and T. Wang, “108 Gb/s OFDMA-PON with polarization multiplexing and direct detection,” J. Lightwave Technol. 28, 484–493 (2010). 7. K. Kikuchi, “Electronic polarization-division demultiplexing based on digital signal processing in intensitymodulation direct-detection optical communication systems,” Opt. Express 22, 1971–1980 (2014). 8. K. Kikuchi and S. Kawakami, “16-ary Stokes-vector modulation enabling DSP-based direct detection at 100 Gbit/s,” in Optical Fiber Communication Conference, OSA Technical Digest (online) (Optical Society of America, 2014), paper Th3K.6. 9. M. Morsy-Osman, M. Chagnon, M. Poulin, S. Lessard, and D. V. Plant, “1 λ 224 Gb/s 10 km transmission of polarization division multiplexed PAM-4 signals using 1.3μm SiP intensity modulator and a direct-detection MIMO-based receiver,” in Proceedings of European Conference on Optical Communication, (ECOC), paper PD.4.4. 10. J. Estarán, M. Usuga, E. Porto da Silvia, M. Piels, M. Iglesias Olmedo, D. Zibar, and I. Tafur Monroy, “Quaternary polarization-multiplexed subsystem for high capacity IM/DD optical data links,” J. Lightwave Technol. 33, 1408–1416 (2015). #240000 Received 29 Apr 2015; revised 26 Jun 2015; accepted 26 Jun 2015; published 23 Jul 2015 (C) 2015 OSA 27 Jul 2015 | Vol. 23, No. 15 | DOI:10.1364/OE.23.019954 | OPTICS EXPRESS 19954 11. C. Herard and A. Lacourt, “Three channel multiplexing using polarization of light,” Optics Communications 60(1-2), 27–31v(1986). 12. P. Dong, C. Xie, and L. Buhl, “Monolithic polarization diversity coherent receiver based on 120-degree optical hybrids on silicon,” Opt. Express 22, 2119–2125 (2014). 13. L. Litwin, “Matched filtering and timing recovery in digital receivers,” RF Design 24(9), 32–49 (2001). 14. B. S. G. Pillai, B. Sedighi, K. Guan, N. P. Anthapadmanabhan, W. Shieh, K. J. Hinton, and R. S. Tucker, “Endto-end energy modeling and analysis of long-haul coherent transmission systems,” J. Lightwave Technol. 32, 3093–3111 (2014). 15. J. O. Smith, “Physical audio signal processing,” Standford University, http://ccrma.standford.edu/ jos/pasp/, online book, date last viewed 10 (2010). 16. J. L. Wei, D. G. Cunningham, R. V. Penty, and I. H. White, “Study of 100 Gigabit Ethernet using carrierless amplitude/phase modulation and optical OFDM,” J. Lightwave Technol. 31, 1367–1373 (2013). 17. Texas Instruments, “CMOS power consumption and cpd calculation,” http://www.ti.com/lit/an/scaa035b/scaa035b.pdf. 18. S. Savory, “Digital signal processing for coherent systems,” in Optical Fiber Communication Conference, OSA Technical Digest (Optical Society of America, 2012), paper OTh3C.7. 19. K. Kikuchi and S. Kawakami, “Multi-level signaling in the Stokes space and its application to large-capacity optical communications,” Opt. Express 22, 7374–7387 (2014).