Cover
Vol. 6 No. 1 (2006)

Published: June 30, 2006

Pages: 27-39

Original Article

Synchronization of Chaotic Semiconductor Lasers with Optoelectronic Feedback and its Applications to Encoded Communications

Fadil Rahma Tahir 1
1 Department of Electrical Engineering, College of Engineering, University of Basrah, Basrah- Iraq
History
  • Received: March 30, 2006
  • Available Online: June 30, 2006
DOI

https://doi.org/10.33971/bjes.6.1.3

Abstract

The theoretical study of synchronization of two coupled single mode semiconductor lasers is achieved. The transmitter is laser subject to optoelectronic feedback that operates in a chaotic regime. The receiver can also operate in a chaotic regime similar to the transmitter. The effects of parameter mismatch on the synchronization of two lasers with optoelectronic feedback are determined, with mismatch in delay time, with mismatch in feedback strength, and with coupling strength between two systems. The synchronization is sensitive to mismatch in the delay time for the transmitter and receiver feedback loops. An open - loop receiver configuration does not have the problem of delay time mismatch and shows the highest synchronization. The synchronization phenomena that appear in the two-coupled semiconductor lasers can be used in communications systems. Finally, an encoding and decoding of message on the chaotic carrier is demonstrated.

References

  1. M.W. Lee, J. Paul, I. Pierce, and K. A. Shore," Frequency Detuned Synchronization Switching in Chaotic DBF Laser Diodes", IEEE journal of quantum electronics, vol. 41, no. 3,2005, 302-307.
  2. J. N. Blakely, L. Illing, and D. J. Gauthier, "Controlling Fast Chaos in Delay Dynamical Systems", Physical review letters, vol. 29, no. 19, 2004, pp.1-4.
  3. D. Kanakidis, A. Argyris, and D. Syvrids," Performance Characterization of High-Bit-Rate Optical Chaotic Communication Systems in a Back-to-Back Configuration", Journal of light wave technology, vol. 21, no.3, 2003, pp. 750-758.
  4. A. Uchida, Y. Lin, and P. Davis, "Characteristics of Chaotic Masking in Synchronized Semiconductor Lasers", IEEE journal of quantum electronics, vol. 39, no. 8, 2003, pp.963-970.
  5. J. Lin, H. Chen, and S. Tang, "Synchronized Chaotic Optical Communications at High Bit Rates", IEEE journal of quantum electronics, vol. 38, no. 9, 2002 pp.1184-1196.
  6. S. Sivarprakasam, P. S. Spencer, P. Pees, And K. A. Shore, "Regimes of Chaotic Synchronization in External-Cavity Laser Diodes", IEEE journal of quantum electronics, vol. 38, no. 9, 2002, pp.1155-1161.
  7. F. R. Tahir, "Chaotic Characteristic of Vertical Cavity Surface Emitting Lasers Subject to Optoelectronic Feedback", Accepted for publication in Iraqi journal for electrical and electronic engineering.
  8. G. P. Agrawal and N. K. Dutta, "Long Wavelength Semiconductor Lasers", New York: Van Norstand Reihold, 1986, chapter 6.
  9. H. D. I. Abarbanel, M. B. Kennel, L. Illing, S. Tang, H. F. Chen, and J. M. Liu," Synchronization and Communication Using Semiconductor Lasers with Optoelectronic feedback", IEEE journal of quantum electronics, vol. 37, no10, 2001, pp. 1301-1311.
  10. M. Bulinski, M. L. Pascu, and I. R. Andrei, "Phase Synchronization and Coding Chaos with Semiconductor Lasers", Journal of optoelectronics and advanced material, vol. 6, no.1, 2004, pp.77-86.