High-dimensional chaotic dynamics of an external cavity semiconductor laser.
نویسندگان
چکیده
We report experimental realization of high{dimensional chaos in a semiconductor laser with delayed feedback from a T{shaped cavity. We study the transition phenomena from regular to high{dimensional chaotic behavior and analyze the time series quantitatively. Correlation dimensions up to C 2 ' 7 are determined reliably from experimental data by a combination of a Singular Value Analysis and a Grassberger{Procaccia algorithm. Modelling the dynamical behavior using semiclassical delay rate equations provides a basic understanding of the observed delay{induced instabilities.
منابع مشابه
Theoretical comparison analysis of long and short external cavity semiconductor laser
In this paper, considering optical feedback as an optical injection, and taking in to account round-trip time role in the external cavity, a standard small signal analysis is applied on laser rate equations. By considering the relaxation oscillation (f2) and external cavity frequencies (f) ratio for semiconductor laser, field amplitude response gain, optical phase and carrier number for long ex...
متن کاملپیاده سازی مدولاتور الکترو اپتیکی دامنه در کاواک خارجی لیزر نیمرسانا برای تولید حالتهای پریودیک و کنترل ناپایداری
In this paper, by placing the electro optical modulator (EOM) into the external cavity of the semiconductor laser (SL) and amplitude modulation of the optical feedback, the dynamical variation of the output intensity of the laser has been studied. This is analyzed numerically via bifurcation and time series diagrams with respect to the applied amplitude modulation index, and modulation voltage...
متن کاملHyperchaotic Dynamics and Synchronization of External-cavity Semiconductor Lasers Typeset Using Revt E X 1
Two unidirectionally coupled external cavity semiconductor lasers showing chaotic intensity uctuations are studied by numerically solving the Lang-The systems are shown to synchronize when operating in the regime of low-frequency uctuations which is characterized by a very high-dimensional (d > 150) attractor. The innuence of parameter diierences between the two lasers on the synchronization qu...
متن کاملChaotic Dynamics of Laser diodes with Strongly Modulated Optical Injection
In this paper, a modulated optical injection system is proposed. It mainly consists of a semiconductor laser subject to a modulated optical injection. It is known that optical injection will force a laser intensity into high-speed periodic oscillation without modulation, while the oscillation will be locked with weak external modulation. However, the route to chaos in such a system is observed ...
متن کامل4.5 Gbps high-speed real-time physical random bit generator.
We report a prototype of high-speed real-time physical random bit generator based on a chaotic laser. The chaotic laser consists of a semiconductor laser with optical feedback in fiber external cavity configuration. The chaotic laser intensity signal is quantized into binary stream by differential comparison which makes the amplitude distribution symmetric with respect to zero mean value. An ex...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Physical review letters
دوره 73 16 شماره
صفحات -
تاریخ انتشار 1994