OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 27 — Dec. 17, 2012
  • pp: 28772–28778

Optical transmitter for 320-Gb/s PDM-RZ-16QAM generation using electrical binary drive signals

Hyeon Yeong Choi, Takehiro Tsuritani, and Itsuro Morita  »View Author Affiliations

Optics Express, Vol. 20, Issue 27, pp. 28772-28778 (2012)

View Full Text Article

Enhanced HTML    Acrobat PDF (1651 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We propose a new 16QAM optical transmitter based on a combination of a dual-drive Mach-Zehnder modulator (DD-MZM) and a dual-parallel Mach-Zehnder modulator (DP-MZM) with electrical binary drive signals. For 16QAM generation, two arms of DD-MZM are independently driven by two different binary data, and consequently, the DD-MZM produces an offset square 4QAM of the 16QAM constellation. This 4QAM signal is then switched over other quadrants through a typical QPSK modulation scheme by the following DP-MZM, and resulting in 16QAM. By using the proposed transmitter together with a digital coherent receiver, we successfully demonstrate the 224-Gb/s and 320-Gb/s PDM-RZ-16QAM systems. Their OSNR sensitivities at 3.8x10−3 BER are observed to be 19.8 dB and 23 dB, respectively.

© 2012 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.4080) Fiber optics and optical communications : Modulation

ToC Category:
Subsystems for Optical Networks

Original Manuscript: October 3, 2012
Revised Manuscript: November 30, 2012
Manuscript Accepted: December 3, 2012
Published: December 12, 2012

Virtual Issues
European Conference on Optical Communication 2012 (2012) Optics Express

Hyeon Yeong Choi, Takehiro Tsuritani, and Itsuro Morita, "Optical transmitter for 320-Gb/s PDM-RZ-16QAM generation using electrical binary drive signals," Opt. Express 20, 28772-28778 (2012)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. P. J. Winzer, A. H. Gnauck, S. Chandrasekhar, S. Draving, J. Evangelista, and B. Zhu, “Generation and 1200-km transmission of 448-Gb/s ETDM 56-Gbaud PDM 16-QAM using a single I/Q modulator,” in Proceedings of ECOC2010, paper PD2.2 (2010).
  2. A. H. Gnauck, P. J. Winzer, S. Chandrasekhar, X. Liu, B. Zhu, and D. W. Peckham, “Spectrally efficient long-haul WDM transmission using 224-Gb/s polarization-multiplexed 16-QAM,” J. Lightwave Technol.29(4), 373–377 (2011). [CrossRef]
  3. M. S. Alfiad, M. Kuschnerov, S. L. Jansen, T. Wuth, D. van den Borne, and H. de Waardt, “11x224-Gb/s POLMUX-RZ-16QAM transmission over 670 km of SSMF with 50-GHz channel spacing,” IEEE Photon. Technol. Lett.22(15), 1150–1152 (2010). [CrossRef]
  4. M. Nakamura, Y. Kamio, and T. Miyazaki, “Experimental demonstration of 16-QAM transmission with a single dual-drive Mach-Zehnder modulator,” in Proceedings of OFC/NFOEC2011, paper JThA42 (2011).
  5. A. Sano, H. Masuda, T. Kobayashi, M. Fujiwara, K. Horikoshi, E. Yoshida, Y. Miyamoto, M. Matsui, M. Mizoguchi, H. Yamazaki, Y. Sakamaki, and H. Ishii, “69.1-Tb/s (432 x 171-Gb/s) C- and extended L-band transmission over 240 km using PDM-16-QAM modulation and digital coherent detection,” in Proceedings of OFC/NFOEC2010, paper PDPB7 (2010).
  6. G.-W. Lu, M. Sköld, P. Johannisson, J. Zhao, M. Sjödin, H. Sunnerud, M. Westlund, A. Ellis, and P. A. Andrekson, “40-Gbaud 16-QAM transmitter using tandem IQ modulators with binary driving electronic signals,” Opt. Express18(22), 23062–23069 (2010). [CrossRef] [PubMed]
  7. X. Zhou and J. Yu, “200-Gb/s PDM-16QAM generation using a new synthesizing method,” in Proceedings of ECOC2009, paper 10.3.5 (2009).
  8. H. Y. Choi, T. Tsuritani, and I. Morita, “A novel transmitter for 320-Gb/s PDM-RZ-16QAM generation using electrical binary drive signals,” in Proceedings of ECOC2012, paper Tu.4.A.2 (2012).
  9. H. Y. Choi, T. Tsuritani, and I. Morita, “BER-adaptive flexible-format transmitter for elastic optical networks,” Opt. Express20(17), 18652–18658 (2012). [CrossRef] [PubMed]
  10. H. Y. Choi, T. Tsuritani, H. Takahashi, W. Peng, and I. Morita, “Generation and detection of 240-Gb/s PDM-64QAM using optical binary synthesizing approach and phase-folded decision-directed equalization,” Opt. Express (to be published).
  11. H. Y. Choi, T. Tsuritani, and I. Morita, “Effects of LN modulator chirp on performance of digital coherent optical transmission system,” in Proceedings of COIN2012, paper TuF.2 (2012).
  12. G. Picchi and G. Prati, “Blind equalization and carrier recovery using a “stop-and-go” decision-directed algorithm,” IEEE Trans. Commun.35(9), 877–887 (1987). [CrossRef]
  13. J. G. Proakis, Digital Communications, 4th ed. (McGraw-Hill, New York, 2001).
  14. ITU-T Recommendation G.975.1 2004, Appendix I.9.

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited