Spectral properties of the coherence collapsed state of a semiconductor laser with delayed optical feedback

1989 ◽  
Vol 25 (6) ◽  
pp. 1143-1151 ◽  
Author(s):  
J.S. Cohen ◽  
D. Lenstra
Keyword(s):  
Semiconductor Laser ◽  
Spectral Properties ◽  
Optical Feedback ◽  
Delayed Optical Feedback

Tristability of a semiconductor laser due to time-delayed optical feedback

2009 ◽  
Vol 79 (3) ◽  
Author(s):  
A. Loose ◽  
B. K. Goswami ◽  
H.-J. Wünsche ◽  
F. Henneberger
Keyword(s):  
Semiconductor Laser ◽  
Optical Feedback ◽  
Delayed Optical Feedback

Semiconductor laser linewidth reduction by six orders of magnitude via delayed optical feedback

2016 ◽  
Vol 42 (1) ◽  
pp. 163 ◽  
Author(s):  
D. Brunner ◽  
R. Luna ◽  
A. Delhom i Latorre ◽  
X. Porte ◽  
I. Fischer
Keyword(s):  
Semiconductor Laser ◽  
Optical Feedback ◽  
Laser Linewidth ◽  
Delayed Optical Feedback

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.

scholarly journals Excitable pulses and diffusion of localized states in a driven semiconductor laser with delay

2018 ◽  
pp. 96-101 ◽  
Author(s):  
Bruno Garbin ◽  
Giovanna Tissoni ◽  
Stephane Barland
Keyword(s):  
Semiconductor Laser ◽  
Semiconductor Lasers ◽  
Optical Feedback ◽  
Optical Injection ◽  
Localized States ◽  
External Perturbations ◽  
Parameter Values ◽  
And Diffusion ◽  
Delayed Optical Feedback

Semiconductor lasers with optical injection may be brought to an “excitable” regime, in which they respond to external perturbations in a neuron-like way. When submitted to delayed optical feedback this system can host stable optical localized states. We characterize experimentally the excitable response of a semiconductor laser with optical injection to external perturbations for different parameter values and show that localized states may diffuse in presence of noise.

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