Abstract
Recent advances in the development of techniques for controlling chaos have motivated efforts to implement secure communication systems which exploit the properties of chaotic dynamical systems [1]. An efficient algorithm for improving the locking rate between receiver and transmitter in such systems has been reported recently [2]. An essential ingredient in controlling chaotic dynamics is the procedure for targetting the desired periodic or unstable orbit which will be utilised to carry the desired information. In earlier work [3] it has been shown that periodic orbits can be targeted using loss modulation. In the present work it is demonstrated that gain switching of external cavity laser diodes can be used for targeting periodic orbits.
© 1995 Optical Society of America
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