High frequency laser dynamics using nonlinear wave mixing

D. Wolfersberger; T. Malica; G. Bouchez; M. Sciamanna

doi:10.1117/12.2662378

8 March 2023 High frequency laser dynamics using nonlinear wave mixing

D. Wolfersberger, T. Malica, G. Bouchez, M. Sciamanna

Proceedings Volume 12447, Quantum Sensing, Imaging, and Precision Metrology; 124470J (2023) https://doi.org/10.1117/12.2662378
Event: SPIE Quantum West, 2023, San Francisco, California, United States

Abstract

We analyze in details experimental measurements of high frequency laser dynamics and chaos generated by a laser diode subjected to phase-conjugate feedback realized using nonlinear wave mixing in a SPS photorefractive crystal in a CAT configuration. In addition to the typical figure of merit, ie, chaos bandwidth, the corresponding spectral flatness and permutation entropy at delay is analyzed. The experiments reveal that chaos, with a bandwidth up to 30 GHz, a spectral flatness up to 0.75, and a permutation entropy at delay of up to 0.99 can be generated. These optimized performances are observed over a large range of parameters and have not been achieved in the conventional optical feedback configuration. Interestingly, when the pump current is reduced, the chaos bandwidth is also reduced while keeping the spectral flatness and the permutation entropy. Our experimental findings are in qualitative agreement with the presented numerical simulations produced using the Lang-Kobayashi model. Such chaotic laser diodes can be used in chaotic cryptography, high-rate random number generation and optical metrology with the enhancement of lidar resolution.

Conference Presentation

Citation Download Citation

D. Wolfersberger, T. Malica, G. Bouchez, and M. Sciamanna "High frequency laser dynamics using nonlinear wave mixing", Proc. SPIE 12447, Quantum Sensing, Imaging, and Precision Metrology, 124470J (8 March 2023); https://doi.org/10.1117/12.2662378

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available