Optical Chaos Generation and Synchronization by Optical Ring Resonator | ||
| Journal of College of Education | ||
| Article 1, Volume 0, Issue 1, November 2017, Pages 78-92 | ||
| Author | ||
| Ayser AbdulHussain Hemed | ||
| Abstract | ||
| In this experimental study, a semiconductor laser is used to construct a new proposed scheme for fiber optics chaos generation and synchronization. This laser is subjected to a nonlinear optical feedback. The input electric pumping power and optical feedback strength, re-injected to the laser itself, are controlling the laser instability. The optical chaos, as a nonlinear effect, is successfully generated. This is due to the interaction between the nonlinearity generated by the feedback power, within the fiber loop mirror (outside the laser) and the active medium for the laser device. The laser in such a situation could be interpreted as a mutual Self Electro-Optic Effect Device (SEED). Another identical laser is successfully setup such that it operated under chaos in similar operating conditions as in the first laser. These two identical lasers are connected together as a closed - loop couple. Identical chaotic synchronization was obtained and examined. A frequency message was modulated in the transmitter laser (master laser) and successfully impeded within the generated chaos signal. The same message was successfully received securely in the receiver laser (slave laser). This is to the application of secure optical communication systems. | ||
| Keywords | ||
| semiconductor laser; Optical Chaos; Optical Loop Mirror; Nonlinear Optical feedback; and Optical fiber | ||
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