Chaotic output signal self-correlation characteristics of optical feedback semiconductor lasers under optical injection

2008 ◽  
Author(s):  
Yan Fan ◽  
Guang-qiong Xia ◽  
Zong-Min Leng ◽  
Xue-Min Jiao ◽  
Yin-Chuan Zhao ◽  
...  
Keyword(s):  
Semiconductor Lasers ◽  
Output Signal ◽  
Optical Feedback ◽  
Optical Injection

Multi-target ranging using optical reservoir computing approach in the laterally coupled semiconductor lasers with self-feedback

2021 ◽  
Author(s):  
Dong-Zhou Zhong ◽  
Zhe Xu ◽  
Ya-Lan Hu ◽  
Ke-Ke Zhao ◽  
Jin-Bo Zhang ◽  
...  
Keyword(s):  
Semiconductor Lasers ◽  
Hilbert Transform ◽  
Optical Feedback ◽  
Optical Injection ◽  
Reservoir Computing ◽  
Probe Signal ◽  
Laser Array ◽  
Target Ranging ◽  
Relative Errors ◽  
Computing Approach

Abstract In this work, we utilize three parallel reservoir computers using semiconductor lasers with optical feedback and light injection to model radar probe signals with delays. Three radar probe signals are generated by driving lasers constructed by a three-element lase array with self-feedback. The response lasers are implemented also by a three-element lase array with both delay-time feedback and optical injection, which are utilized as nonlinear nodes to realize the reservoirs. We show that each delayed radar probe signal can well be predicted and to synchronize with its corresponding trained reservoir, even when there exist parameter mismatches between the response laser array and the driving laser array. Based on this, the three synchronous probe signals are utilized for ranging to three targets, respectively, using Hilbert transform. It is demonstrated that the relative errors for ranging can be very small and less than 0.6%. Our findings show that optical reservoir computing provides an effective way for applications of target ranging.

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.

Synchronization of optical-feedback-induced chaos in semiconductor lasers by optical injection

2001 ◽  
Vol 63 (3) ◽  
Author(s):  
Y. Liu ◽  
H. F. Chen ◽  
J. M. Liu ◽  
P. Davis ◽  
T. Aida
Keyword(s):  
Semiconductor Lasers ◽  
Optical Feedback ◽  
Optical Injection

scholarly journals Accelerating photonic computing by bandwidth enhancement of a time-delay reservoir

Nanophotonics ◽  
2020 ◽  
Vol 9 (13) ◽  
pp. 4163-4171 ◽  
Author(s):  
Irene Estébanez ◽  
Janek Schwind ◽  
Ingo Fischer ◽  
Apostolos Argyris
Keyword(s):  
Information Processing ◽  
Semiconductor Lasers ◽  
Optical Feedback ◽  
Sampling Rate ◽  
Operating Conditions ◽  
Optical Injection ◽  
Bandwidth Enhancement ◽  
Nonlinear Properties ◽  
Computing Paradigm ◽  
Computational Performance

AbstractSemiconductor lasers (SLs) that are subject to delayed optical feedback and external optical injection have been demonstrated to perform information processing using the photonic reservoir computing paradigm. Optical injection or optical feedback can under some conditions induce bandwidth-enhanced operation, expanding their modulation response up to several tens of GHz. However, these conditions may not always result in the best performance for computational tasks, since the dynamical and nonlinear properties of the reservoir might change as well. Here we show that by using strong optical injection we can obtain an increased frequency response and a significant acceleration in the information processing capability of this nonlinear system, without loss of performance. Specifically, we demonstrate numerically that the sampling time of the photonic reservoir can be as small as 12 ps while preserving the same computational performance when compared to a much slower sampling rate. We also show that strong optical injection expands the reservoir’s operating conditions for which we obtain improved task performance. The latter is validated experimentally for larger sampling times of 100 ps. The above attributes are demonstrated in a coherent optical communication decoding task.

Noise characteristics in line-narrowed semiconductor lasers with optical feedback

1981 ◽  
Vol 17 (19) ◽  
pp. 677 ◽  
Author(s):  
L. Goldberg ◽  
A. Dandridge ◽  
R.O. Miles ◽  
T.G. Giallorenzi ◽  
J.F. Weller
Keyword(s):  
Semiconductor Lasers ◽  
Optical Feedback ◽  
Noise Characteristics
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