OSA's Digital Library

Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 6 — Mar. 25, 2013
  • pp: 7354–7361

Nonlinearity mitigation for high-speed optical OFDM transmitters using digital pre-distortion

Yuan Bao, Zhaohui Li, Jianping Li, Xinhuan Feng, Bai-ou Guan, and Guifang Li  »View Author Affiliations

Optics Express, Vol. 21, Issue 6, pp. 7354-7361 (2013)

View Full Text Article

Enhanced HTML    Acrobat PDF (2179 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Optical orthogonal frequency-division multiplexing (OOFDM) signal is sensitive to nonlinear distortions induced by optical modulators. We propose and experimentally demonstrate a digital pre-distortion (DPD) algorithm to linearize the optical modulators including electro-absorption modulated lasers (EML) and Mach-Zehnder modulators (MZM) used in high-speed OOFDM transmitters. By using an adaptive DPD algorithm with a learning structure, the inverse transfer function of a modulator, which is based on a polynomial model, has been obtained. In the experiment, the performance improvements with and without considering the memory effects of the DPD model are illustrated. The two typical kinds of high-speed OOFDM signals with a bit rate up to 30-Gb/s have been implemented experimentally. The results show that the nonlinear distortion induced by optical modulators can be compensated by using the DPD algorithm to substantially improve the optical modulation index.

© 2013 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(230.4110) Optical devices : Modulators

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: December 28, 2012
Revised Manuscript: March 4, 2013
Manuscript Accepted: March 4, 2013
Published: March 15, 2013

Yuan Bao, Zhaohui Li, Jianping Li, Xinhuan Feng, Bai-ou Guan, and Guifang Li, "Nonlinearity mitigation for high-speed optical OFDM transmitters using digital pre-distortion," Opt. Express 21, 7354-7361 (2013)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. D. Z. Hsu, C. C. Wei, H. Y. Chen, J. Chen, M. C. Yuang, S. H. Lin, and W. Y. Li, “21 Gb/s after 100 km OFDM long-reach PON transmission using a cost-effective electro-absorption modulator,” Opt. Express18(26), 27758–27763 (2010). [CrossRef] [PubMed]
  2. W. R. Peng, I. Morita, H. Takahashi, and T. Tsuritani, “Transmission of high-speed (>100-Gb/s) direct-detection optical OFDM superchannel,” J. Lightwave Technol.30(12), 2025–2034 (2012). [CrossRef]
  3. Y. T. Moon, J. W. Jang, W. K. Choi, and Y. W. Choi, “Simultaneous noise and distortion reduction of a broadband optical feedforward transmitter for multi-service operation in radio-over-fiber systems,” Opt. Express15(19), 12167–12173 (2007). [CrossRef] [PubMed]
  4. Y. Shen, B. Hraimel, X. Zhang, G. E. R. Cowan, K. Wu, and T. Liu, “A novel analog broadband RF predistortion circuit to linearize electro-absorption modulators in multiband OFDM radio-over-fiber systems,” IEEE Trans. Microw. Theory Tech.58(11), 3327–3335 (2010). [CrossRef]
  5. B. Hraimel and X. Zhang, “A low cost broadband predistortion linearized single drive x-cut Mach-Zehnder modulator for radio-over-fiber systems,” IEEE Photon. Technol. Lett.24(18), 1571–1573 (2012). [CrossRef]
  6. D. R. Morgan, Z. Ma, J. Kim, M. G. Zierdt, and J. Pastalan, “A generalized memory polynomial model for digital predistortion of RF power amplifiers,” IEEE Trans. Signal Process.54(10), 3852–3860 (2006). [CrossRef]
  7. L. Ding, G. T. Zhou, D. R. Morgan, Z. Ma, J. S. Kenney, J. Kim, and C. R. Giardina, “A robust digital baseband predistorter constructed using memory polynomials,” IEEE Trans. Commun.52(1), 159–165 (2004). [CrossRef]
  8. D. J. F. Barros and J. M. Kahn, “Optical modulator optimization for orthogonal frequency-division multiplexing,” J. Lightwave Technol.27(13), 2370–2378 (2009). [CrossRef]
  9. Z. Liu, M. A. Violas, and N. B. Carvalho, “Digital predistortion for RSOAs as external modulators in radio over fiber systems,” Opt. Express19(18), 17641–17646 (2011). [CrossRef] [PubMed]
  10. T. Alves, J. Morgado, and A. Cartaxo, “Linearity improvement of directly modulated PONs by digital pre-distortion of coexisting OFDM-based signals,” in Proceedings of Advanced Photonics Congress, (Optical Society of America, 2012), paper AW4A.2.

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