Investigation of lasers based on coupled waveguides by near-field scanning optical microscopy

We have investigated near field intensity distributions of InGaAs/GaAs/AlGaAs lasers possessing broadened waveguides based on coupled large optical cavity structures (CLOC) by scanning near-field optical microscopy (SNOM). The concept allows effective suppressing of the transverse high-order mode la...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-11, Vol.929 (1), p.12070
Main Authors: Polubavkina, Yu S, Gordeev, N Yu, Payusov, A S, Kryzhanovskaya, N V, Moiseev, E I, Zubov, F I, Mintairov, S A, Kalyuzhnyy, N A, Kulagina, M M, Shernyakov, Yu M, Maximov, M V, Zhukov, A E
Format: Article
Language:English
Subjects:
Aluminum gallium arsenide lasers
Indium gallium arsenides
Lasers
Microscopes
Microscopy
Near fields
Optical microscopy
Physics
Waveguides
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Summary:We have investigated near field intensity distributions of InGaAs/GaAs/AlGaAs lasers possessing broadened waveguides based on coupled large optical cavity structures (CLOC) by scanning near-field optical microscopy (SNOM). The concept allows effective suppressing of the transverse high-order mode lasing. The obtained results can be considered to be the direct proof of pure transverse single-mode emission of the CLOC lasers.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/929/1/012070