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Miniature lasers: what does and what does not matter? (Conference Presentation)

Paper Abstract

Recent years have seen an increase of interest in developing nano-scale sources of coherent radiation. Numerous schemes includes novel confinement techniques such as plasmons and micro resonators as well as novel materials, such as two-dimensional transition metal di-chalcogenides have been investigated. In the process a lot of confusion has been produced by introduction into consideration of numerous parameters such as Purcell factor and the beta (fraction of spontaneous emission going into a given mode). That confusion makes comparative analysis of miniature lasers difficult. In this talk we show that the only parameters defining the laser threshold are the modal loss, quantum efficiency and physical volume of gain medium. Using this method we compare the novel lasers with existing state of the art – DFB and VCSELs and draw conclusions.

Paper Details

Date Published: 9 September 2019
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Proc. SPIE 11080, Metamaterials, Metadevices, and Metasystems 2019, 1108008 (9 September 2019); doi: 10.1117/12.2531018
Show Author Affiliations
Jacob B. Khurgin, Johns Hopkins Univ. (United States)
Mikhail A. Noginov, Norfolk State Univ. (United States)


Published in SPIE Proceedings Vol. 11080:
Metamaterials, Metadevices, and Metasystems 2019
Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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