Integrated fiber-based transverse mode converter
Автор: Gavrilov Andrey Vadimovich, Pavelyev Vladimir Sergeevich
Журнал: Компьютерная оптика @computer-optics
Рубрика: Opto-it
Статья в выпуске: 4 т.41, 2017 года.
Бесплатный доступ
A transverse mode converter based on a binary microrelief implemented directly on the end-face of a few-mode fiber was numerically investigated. The results of numerical simulation demonstrated the converter to form LP-11 and LP-21 modes with high efficiency, providing a more-than 92 % mode purity. Transformations of modes excited by a fiber microbending were also numerically investigated. The excited beams were shown to save their mode purity even in a strong bending as the arising parasitical modes were mostly unguided by the fiber. The resulting beam power and mode content were also demonstrated to depend on the beam and bending mutual orientation for beams with strong rotational symmetry.
Transverse mode, binary microrelief, few-mode fiber, diffractive optical element
Короткий адрес: https://sciup.org/140228636
IDR: 140228636 | DOI: 10.18287/2412-6179-2017-41-4-510-514
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