Отрывок: From this point it is interesting to know how higher modes survive and preserve their purity in such distortions. Here one simple but revealing distor- tion, namely fiber bending, was studied. For demonstration the case was simulated, where fi- ber lies on two supports with 1 mm between them and the bending occurs due to a force applied to the fiber straight between the supports (yet we did not take photoelasticity effects into account). When a beam cons...
Название : Integrated fiber-based transverse mode converter
Авторы/Редакторы : Gavrilov, A.V.
Pavelyev, V.S.
Ключевые слова : transverse mode
binary microrelief
few-mode fiber
diffractive optical element
Дата публикации : Авг-2017
Издательство : Самарский университет
Библиографическое описание : Gavrilov AV, Pavelyev VS. Integrated fiber-based transverse mode converter. Computer Optics 2017; 41(4): 510-514.
Серия/номер : 41;4
Аннотация : 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.
URI (Унифицированный идентификатор ресурса) : https://dx.doi.org/10.18287/2412-6179-2017-41-4-510-514
Другие идентификаторы : Dspace\SGAU\20171020\65750
ГРНТИ: 29.33.39
Располагается в коллекциях: Журнал "Компьютерная оптика"

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