Coupled semiconductor lasers with delayed optical feedback: Chaos synchronization and its application

2003 ◽  
Author(s):  
I. Fischer ◽  
M. Peil ◽  
W. Elsäßer
Keyword(s):  
Semiconductor Lasers ◽  
Chaos Synchronization ◽  
Optical Feedback ◽  
Delayed Optical Feedback ◽  
Coupled Semiconductor

Chaos Synchronization and Communication in Mesh Network Based on Mutually Coupled Semiconductor Lasers

2013 ◽  
Vol 40 (12) ◽  
pp. 1202005
Author(s):  
潘兴茂 Pan Xingmao ◽  
吴正茂 Wu Zhengmao ◽  
唐曦 Tang Xi ◽  
夏光琼 Xia Guangqiong
Keyword(s):  
Semiconductor Lasers ◽  
Chaos Synchronization ◽  
Mesh Network ◽  
Coupled Semiconductor

A Unifying Analysis of Chaos Synchronization and Consistency in Delay-Coupled Semiconductor Lasers

2019 ◽  
Vol 25 (6) ◽  
pp. 1-9 ◽  
Author(s):  
Thomas Jungling ◽  
Xavier Porte ◽  
Neus Oliver ◽  
Miguel C. Soriano ◽  
Ingo Fischer
Keyword(s):  
Semiconductor Lasers ◽  
Chaos Synchronization ◽  
Coupled Semiconductor

Chaos Synchronization and Communication in Mutually Coupled Semiconductor Lasers Driven by a Third Laser

2010 ◽  
Vol 28 (13) ◽  
pp. 1978-1986 ◽  
Author(s):  
Ning Jiang ◽  
Wei Pan ◽  
Lianshan Yan ◽  
Bin Luo ◽  
Weili Zhang ◽  
...  
Keyword(s):  
Semiconductor Lasers ◽  
Chaos Synchronization ◽  
Coupled Semiconductor

Quantifying stochasticity in the dynamics of delay-coupled semiconductor lasers via forbidden patterns

2010 ◽  
Vol 368 (1911) ◽  
pp. 367-377 ◽  
Author(s):  
Jordi Tiana-Alsina ◽  
Javier M. Buldú ◽  
M. C. Torrent ◽  
Jordi García-Ojalvo
Keyword(s):  
Time Series ◽  
Semiconductor Lasers ◽  
Optical Feedback ◽  
Low Frequency ◽  
Lag Time ◽  
Lasing Threshold ◽  
Switching Dynamics ◽  
Forbidden Patterns ◽  
Coherence Collapse ◽  
Coupled Semiconductor

We quantify the level of stochasticity in the dynamics of two mutually coupled semiconductor lasers. Specifically, we concentrate on a regime in which the lasers synchronize their dynamics with a non-zero lag time, and the leader and laggard roles alternate irregularly between the lasers. We analyse this switching dynamics in terms of the number of forbidden patterns of the alternate time series. The results reveal that the system operates in a stochastic regime, with the level of stochasticity decreasing as the lasers are pumped further away from their lasing threshold. This behaviour is similar to that exhibited by a single semiconductor laser subject to external optical feedback, as its dynamics shifts from the regime of low-frequency fluctuations to coherence collapse.

scholarly journals Nonlinear Dynamics of a Single-Mode Semiconductor Laser with Long Delayed Optical Feedback: A Modern Experimental Characterization Approach

Photonics ◽  
2022 ◽  
Vol 9 (1) ◽  
pp. 47
Author(s):  
Xavier Porte ◽  
Daniel Brunner ◽  
Ingo Fischer ◽  
Miguel C. Soriano
Keyword(s):  
Semiconductor Laser ◽  
Semiconductor Lasers ◽  
Optical Feedback ◽  
Dynamical Behavior ◽  
Laser Cavity ◽  
Single Mode ◽  
Point Of View ◽  
Multiple Time Scales ◽  
Multiple Time ◽  
Delayed Optical Feedback

Semiconductor lasers can exhibit complex dynamical behavior in the presence of external perturbations. Delayed optical feedback, re-injecting part of the emitted light back into the laser cavity, in particular, can destabilize the laser’s emission. We focus on the emission properties of a semiconductor laser subject to such optical feedback, where the delay of the light re-injection is large compared to the relaxation oscillations period. We present an overview of the main dynamical features that emerge in semiconductor lasers subject to delayed optical feedback, emphasizing how to experimentally characterize these features using intensity and high-resolution optical spectra measurements. The characterization of the system requires the experimentalist to be able to simultaneously measure multiple time scales that can be up to six orders of magnitude apart, from the picosecond to the microsecond range. We highlight some experimental observations that are particularly interesting from the fundamental point of view and, moreover, provide opportunities for future photonic applications.

scholarly journals Task-Independent Computational Abilities of Semiconductor Lasers with Delayed Optical Feedback for Reservoir Computing

Photonics ◽  
2019 ◽  
Vol 6 (4) ◽  
pp. 124 ◽  
Author(s):  
Krishan Harkhoe ◽  
Guy Van der Sande
Keyword(s):  
Semiconductor Laser ◽  
Semiconductor Lasers ◽  
Optical Feedback ◽  
Time Series Prediction ◽  
Reservoir Computing ◽  
Computational Capacity ◽  
Optimal Node ◽  
Chaotic Time Series Prediction ◽  
Sample Time ◽  
Delayed Optical Feedback

Reservoir computing has rekindled neuromorphic computing in photonics. One of the simplest technological implementations of reservoir computing consists of a semiconductor laser with delayed optical feedback. In this delay-based scheme, virtual nodes are distributed in time with a certain node distance and form a time-multiplexed network. The information processing performance of a semiconductor laser-based reservoir computing (RC) system is usually analysed by way of testing the laser-based reservoir computer on specific benchmark tasks. In this work, we will illustrate the optimal performance of the system on a chaotic time-series prediction benchmark. However, the goal is to analyse the reservoir’s performance in a task-independent way. This is done by calculating the computational capacity, a measure for the total number of independent calculations that the system can handle. We focus on the dependence of the computational capacity on the specifics of the masking procedure. We find that the computational capacity depends strongly on the virtual node distance with an optimal node spacing of 30 ps. In addition, we show that the computational capacity can be further increased by allowing for a well chosen mismatch between delay and input data sample time.

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