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Trade-off between threshold gain and directionality of emission for modes of two-dimensional eccentric microring lasers analysed using lasing eigenvalue problem

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dc.contributor.author Repina A.I.
dc.contributor.author Oktyabrskaya A.O.
dc.contributor.author Spiridonov A.O.
dc.contributor.author Ketov I.V.
dc.contributor.author Karchevskii E.M.
dc.date.accessioned 2022-02-09T20:40:47Z
dc.date.available 2022-02-09T20:40:47Z
dc.date.issued 2021
dc.identifier.issn 1751-8725
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/169632
dc.description.abstract This article discusses how a trade-off between the high directionality of emissions and low threshold gain can be achieved in active eccentric microring cavities. Our findings are based on the lasing eigenvalue problem formalism, considered using the method of analytical regularisation, and an extremely fast and accurate dedicated Galerkin method, applied to a set of associated Muller boundary integral equations. This method allows us to investigate symmetric and antisymmetric modes separately, on the threshold of nonattenuation in time emission. Numerical results show that the directivities of emission of working modes in a given frequency range, together with their threshold values of gain, are controlled by the size and location of the air hole in the cavity. The high efficiency of the developed code allows us to make an elementary optimisation of the considered cavity; this code is a promising engineering tool in the design of microring lasers.
dc.relation.ispartofseries IET Microwaves, Antennas and Propagation
dc.title Trade-off between threshold gain and directionality of emission for modes of two-dimensional eccentric microring lasers analysed using lasing eigenvalue problem
dc.type Article
dc.relation.ispartofseries-issue 10
dc.relation.ispartofseries-volume 15
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 1133
dc.source.id SCOPUS17518725-2021-15-10-SID85111625388


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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