Mid-infrared quantum cascade lasers for chaos secure communications / Olivier Spitz.

Format:

Book

Author/Creator:

Spitz, Olivier.

Series:

Springer theses 2190-5053

Springer theses, 2190-5053

Language:

English

Subjects (All):

Lasers.

Laser communication systems.

Genre:

Electronic books.

Physical Description:

1 online resource.

Place of Publication:

Cham, Switzerland : Springer, 2021.

System Details:

text file

Summary:

The mid-infrared domain is a promising optical domain because it holds two transparency atmospheric windows, as well as the fingerprint of many chemical compounds. Quantum cascade lasers (QCLs) are one of the available sources in this domain and have already been proven useful for spectroscopic applications and free-space communications. This thesis demonstrates how to implement a private free-space communication relying on mid-infrared optical chaos and this requires an accurate cartography of non-linear phenomena in quantum cascade lasers. This private transmission is made possible by the chaos synchronization of two twin QCLs. Chaos in QCLs can be generated under optical injection or external optical feedback. Depending on the parameters of the optical feedback, QCLs can exhibit several non-linear phenomena in addition to chaos. Similarities exist between QCLs and laser diodes when the chaotic dropouts are synchronized with an external modulation, and this effect is known as the entrainment phenomenon. With a cross-polarization reinjection technique, QCLs can generate all-optical square-waves. Eventually, it is possible to trigger optical extreme events in QCLs with tilted optical feedback. All these experimental results allow a better understanding of the non-linear dynamics of QCLs and will extend the potential applications of this kind of semiconductor lasers.

Contents:

Introduction

Quantum Cascade Lasers: Mid-Infrared Sources with Outstanding Features

Chaos in Quantum Cascade Lasers

Chaos Synchronization and its Application to Secure Communications

Rogue Waves and Extreme Events.

Notes:

"Doctoral Thesis accepted by Institut Polytechnique de Paris, Palaiseau, France."

Includes bibliographical references.

Online resource; title from PDF title page (SpringerLink, viewed May 21, 2021).

ISBN:

9783030743079

3030743071

OCLC:

1251873314

Access Restriction:

Restricted for use by site license.