TY - JOUR
T1 - Optical-communication systems based on chaos in semiconductor lasers
AU - Liu, J. M.
AU - Chen, H. F.
AU - Tang, S.
N1 - Funding Information:
Manuscript received March 8, 2001; revised August 15, 2001. This work was supported by the United States Army Research Office under Grant DAAG55-98-1-0269. This paper was recommended by Guest Editor M. Ogorzalek. The authors are with the Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, CA 90095-159410 USA. Publisher Item Identifier S 1057-7122(01)10378-8.
PY - 2001/12
Y1 - 2001/12
N2 - Chaotic optical-communication systems using semiconductor lasers are studied. The dynamics, synchronization, and message encoding and decoding are modeled and studied numerically and experimentally for two systems which are based on optical injection and delayed optoelectronic feedback of semiconductor lasers, respectively. An optically-injected single-mode semiconductor laser is a nonautonomous nonlinear system of three dynamical variables. It has phase-sensitive dynamics that follow a period-doubling route to chaos. A single-mode semiconductor laser with delayed optoelectronic feedback is an autonomous, delayed-feedback nonlinear system with only two dynamical variables, but its dimension can be very high when the delay time is large. It has phase-insensitive pulsing dynamics that follows a quasi-periodic route to chaotic pulsing. Stable synchronization for both systems are devised, modeled, and studied numerically and experimentally. Message encoding schemes for chaotic communication systems based on the concept of chaos modulation are devised and implemented for both systems to encode and decode optically transmitted messages.
AB - Chaotic optical-communication systems using semiconductor lasers are studied. The dynamics, synchronization, and message encoding and decoding are modeled and studied numerically and experimentally for two systems which are based on optical injection and delayed optoelectronic feedback of semiconductor lasers, respectively. An optically-injected single-mode semiconductor laser is a nonautonomous nonlinear system of three dynamical variables. It has phase-sensitive dynamics that follow a period-doubling route to chaos. A single-mode semiconductor laser with delayed optoelectronic feedback is an autonomous, delayed-feedback nonlinear system with only two dynamical variables, but its dimension can be very high when the delay time is large. It has phase-insensitive pulsing dynamics that follows a quasi-periodic route to chaotic pulsing. Stable synchronization for both systems are devised, modeled, and studied numerically and experimentally. Message encoding schemes for chaotic communication systems based on the concept of chaos modulation are devised and implemented for both systems to encode and decode optically transmitted messages.
KW - Chaos modulation
KW - Chaotic communication
KW - Chaotic synchronization
KW - Message encoding and decoding
KW - Semiconductor lasers
UR - http://www.scopus.com/inward/record.url?scp=0035679999&partnerID=8YFLogxK
U2 - 10.1109/TCSI.2001.972854
DO - 10.1109/TCSI.2001.972854
M3 - Article
AN - SCOPUS:0035679999
SN - 1057-7122
VL - 48
SP - 1475
EP - 1483
JO - IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications
JF - IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications
IS - 12
ER -