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All-Optical Noninvasive Delayed Feedback Control of Semiconductor Lasers

All-Optical Noninvasive Delayed Feedback Control of Semiconductor Lasers

Paperback

Technology & Engineering

ISBN10: 365801539X
ISBN13: 9783658015398
Publisher: Springer Nature
Published: Mar 22 2013
Pages: 118
Weight: 0.39
Height: 0.30 Width: 5.83 Depth: 8.27
Language: English

The stabilization of unstable states hidden in the dynamics of a system, in particular the control of chaos, has received much attention in the last years. Sylvia Schikora for the first time applies a well-known control method called delayed feedback control entirely in the all-optical domain. A multisection semiconductor laser receives optical feedback from an external Fabry-Perot interferometer. The control signal is a phase-tunable superposition of the laser signal and provokes the laser to operate in an otherwise unstable periodic state with a period equal to the time delay. The control is noninvasive, because the reflected signal tends to zero when the target state is reached.

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