Abstract
A communication system based on the synchronization of optical chaos in semiconductor lasers is proposed. The optical chaos is generated in a single-mode semiconductor laser with external ring optical feedback. Synchronization of chaos is performed by a direct optical-injection scheme that consists of a transmitter laser with an external optical feedback and a receiver laser with optical injection from the transmitter laser. Both numerical and experimental results on synchronization of giga-hertz chaotic signals are presented. Direct encoding of 2.5 Gbps messages on the chaotic waveform is numerically demonstrated. The bit-error rate shows a sensitive dependence on the frequency detuning.
Original language | English |
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Pages (from-to) | 1484-1490 |
Number of pages | 7 |
Journal | IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications |
Volume | 48 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2001 |
Keywords
- Chaos synchronization
- Injection locking
- Optical chaos
- Optical communication
- Optical feedback