OSA's Digital Library

Optics Express

Optics Express

  • Editor: Martijn de Sterke
  • Vol. 16, Iss. 20 — Sep. 29, 2008
  • pp: 16166–16171

Single SOA based 16 DWDM channels all-optical NRZ-to-RZ format conversions with different duty cycles

Yu Yu, Xinliang Zhang, J. B. Rosas-Fernández, Dexiu Huang, R. V. Penty, and I. H. White  »View Author Affiliations

Optics Express, Vol. 16, Issue 20, pp. 16166-16171 (2008)

View Full Text Article

Enhanced HTML    Acrobat PDF (303 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We demonstrate simultaneous NRZ-to-RZ conversion for 16 DWDM channels, using a single SOA and a subsequent delay interferometer (DI) acting as a comb-like filter to control the obtained pulse-width for all of the channels. The SOA is operated in deep saturation, resulting in weak cross gain modulation and cross phase modulation induced crosstalk between different NRZ channels. By adjusting the detuning between the peaks in the DI spectrum and each corresponding carrier, good quality RZ signals with different duty cycles can be achieved. Bit-error-rate measurements show negative power penalties for the obtained RZ signals with different duty cycles. Significant timing jitter reductions for all channels show the good regenerative performance of the proposed converter.

© 2008 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4080) Fiber optics and optical communications : Modulation
(070.4560) Fourier optics and signal processing : Data processing by optical means

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: June 24, 2008
Revised Manuscript: July 25, 2008
Manuscript Accepted: August 4, 2008
Published: September 26, 2008

Yu Yu, Xinliang Zhang, J. B. Rosas-Fernández, Dexiu Huang, R. V. Penty, and I. H. White, "Single SOA based 16 DWDM channels all-optical NRZ-to-RZ format conversions with different duty cycles," Opt. Express 16, 16166-16171 (2008)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. G. R. Lin, K. C. Yu, and Y. C. Chang, "10 Gbit/s all-optical non-return to zero-return-to-zero data format conversion based on a backward dark-optical-comb injected semiconductor optical amplifier," Opt. Lett. 31, 1376-1378 (2006). [CrossRef] [PubMed]
  2. L.  Xu, B. C.  Wang, V.  Baby, and I.  Glesk, "All-optical data format conversion between RZ and NRZ based on a Mach-Zehnder Interferometric Wavelength Converter," IEEE Photon. Technol. Lett.  15, 308-310 (2003). [CrossRef]
  3. J. Wang, J. Sun, Q. Sun, D. Wang, and D. Huang, "Proposal and simulation of all-optical NRZ-to-RZ format conversion using cascaded sum- and difference-frequency generation," Opt. Express 15, 583-588 (2007). [CrossRef] [PubMed]
  4. X. Yang, A. K. Mishra, R. J. Manning, R. P. Webb, and A. D. Ellis, "All-optical 42.6 Gbit/s NRZ to RZ format conversion by cross-phase modulation in single SOA,"Electro. Lett. 43, 890 - 892 (2007). [CrossRef]
  5. C. H. Kwok and C. Lin, "Polarization-insensitive all-optical NRZ-to-RZ format conversion by spectral filtering of a cross phase modulation broadened signal spectrum," IEEE J. Sel. Top. Quantum Electron. 12,451-458 (2006). [CrossRef]
  6. L. Noel, X. Shan, and A. D. Ellis, "Four WDM channel NRZ to RZ format conversion using a single semiconductor laser amplifier," Electro. Lett.,  31,277-278 (1995). [CrossRef]
  7. J. Lasri, P. Devgan, V. S. Grigoryan, and P. Kumar, "Multiwavelength NRZ-to-RZ conversion with timing-jitter suppression," in Conference on Lasers and Electro-optics, CLEO???04 (Optical Society of America, 2004), paper CFG2.
  8. M. L. Nielsen, B. Lavigne, and B. Dagens, "Polarity-preserving SOA-based wavelength conversion at 40 Gbit/s using bandpass filtering," Electro. Lett.,  39, 1334-1335 (2003). [CrossRef]
  9. Y. Yu, X. Zhang, E. Zhou, and D. Huang, "All-Optical Clock Recovery From NRZ Signals at Different Bit Rates via Preprocessing by an Optical Filter," IEEE Photon. Technol. Lett.  19, 2039-2041 (2007). [CrossRef]

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