UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS

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2024-11-22 2:38
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Conference: Bucharest University Faculty of Physics 2021 Meeting


Section: Optics, Spectroscopy, Plasma and Lasers


Title:
Numerical simulation of chaotic multimode dynamics of a semiconductor laser optical coupled with two external cavities


Authors:
Cristina ONEA (1), Paul E. STERIAN (1), Ionut Relu ANDREI (2), Mihail Lucian PASCU (2,3), Mircea BULINSKI (3)


*
Affiliation:
1) University "Politehnica" of Bucharest, Academic Center for Optical Engineering and Photonics, Faculty of Applied Sciences, Physics Department, Bucharest, Romania

2) National Institute for Laser, Plasma and Radiation Physics, Magurele, Romania

3) University of Bucharest, Faculty of Physics, Magurele, Romania


E-mail
ionut.andrei@inflpr.ro


Keywords:
external cavity semiconductor laser, double external feedback, multimode, simulation model


Abstract:
In this paper we presented the modeling and numerical simulation of the chaotic dynamics of a semiconductor laser with double external cavity (D-ECSL) [1]. Laser emission dynamics of the D-ECSL system operating multimode with moderate optical feedback is given for every laser active mode by Lang-Kobayashi set of equations describing the rates of variation of the internal field and carrier density [2]. The developed multimode model simulates a system with 3 active modes (3 coupled single-mode systems). All modes are coupled having the same “feed” source but evolving under different feedback conditions (feedback intensity and round-trip time of the external cavity). The time series of the emission power represent the summing of the signals generated by the three modes [3]. The numerical results show that the developed numerical multimode model simulates with good approximation the chaotic dynamic of D-ECSL system for a specific set of parameter values.


References:

1. C. Onea, P.E. Sterian, I.R. Andrei, M.L. Pascu, High frequency chaotic dynamics in a semiconductor laser with double-reflector selective cavity, University Politehnica of Bucharest Scientific Bulletin-series A-Applied Mathematics and Physics,Vol. 81, iss. 4, pp.261-270 (2019).

2. R. Lang, K. Kobayashi, External optical feedback effects on semiconductor injection laser properties, IEEE Journal of Quantum Electronics, 16 (1980) 347–355.

3. C. Onea, I.R. Andrei, P.E. Sterian, M.L. Pascu, M. Bulinski, Numerical simulation of chaotic multimode dynamics of a semiconductor laser optical coupled with two external cavities, U.P.B. Sci. Bull., Series A, 81 (2021) 259–270.



Acknowledgement:
This work was supported by Romanian Ministry of Education and Research, under Romanian National Nucleu Program LAPLAS VI – no. 16N/2019; UEFISCDI PED Program, Project PN-III-P2-2.1-PED-2019-5283; and Doctoral School SD ETTI-B University POLITEHNICA of Bucharest.