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Fenomene electronice şi ionice (144) |
Electrotehnică (1146) |
SM ISO690:2012 TRONCIU, Vasile, RADZIUNAS, Mindaugas, KHODER, Mulham, DANCKAERT, Jan, VERSCHAFFELT, Guy. Semiconductor ring lasers tuned by external optical feedback: theory and experiment. In: Materials Science and Condensed Matter Physics, Ed. 9, 25-28 septembrie 2018, Chișinău. Chișinău, Republica Moldova: Institutul de Fizică Aplicată, 2018, Ediția 9, p. 60. |
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Materials Science and Condensed Matter Physics Ediția 9, 2018 |
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Conferința "International Conference on Materials Science and Condensed Matter Physics" 9, Chișinău, Moldova, 25-28 septembrie 2018 | |||||
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CZU: 537.535.376+621.375.8 | |||||
Pag. 60-60 | |||||
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We study theoretically properties of a semiconductor ring laser with filtered delayed optical feedback shown in Figure 1. Sections and junctions of the device are indicated by colored frames and thick black segments, respectively. Here, the frames of different colors indicate different types of the device sections. More particularly, we distinguish the amplifying sections and two types of the passive sections Fig. 1 Schematic representation of the simulated integrated SRL with four branches of filtered and amplified bidirectional optical feedback. The traveling-wave model [2] determining the evolution of optical fields and carrier density along the ring cavity and filtering branches is used to study the wavelength selection, switching speed and tuning in such devices. This model allows us to study in detail the effect of the different laser parameters and can be useful for designing future devices. Finally, we compare the numerical results with the experimental observations. The results show a good qualitative agreement between measured and calculated characteristics. |
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