dor_id: 41292

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856.4.0.u: http://revistas.unam.mx/index.php/rmf/article/view/14137/13474

100.1.#.a: Llamas, I. F.; Kolokoltsev, O. V.; Svyryd, V. A.; Ordóñez Romero, C. L.

524.#.#.a: Llamas, I. F., et al. (2005). Synthesis of nonuniform long-period optical gratings with a continuous refractive index profile. Revista Mexicana de Física; Vol 51, No 006. Recuperado de https://repositorio.unam.mx/contenidos/41292

245.1.0.a: Synthesis of nonuniform long-period optical gratings with a continuous refractive index profile

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Facultad de Ciencias, UNAM

264.#.0.c: 2005

264.#.1.c: 2005-01-01

653.#.#.a: Long-period fiber gratings; synthesis; optical filters; genetic algorithm

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041.#.7.h: eng

520.3.#.a: In this work we present a new method for such a non-trivial problem as the synthesis of optical filters based on non-uniform Long-Period Fiber Gratings (LPGs). The method is based on a real-coded genetic algorithm (GA) with a new quasi-analytical procedure for solving the Zakharov-Shabat Inverse Problem. The method possesses an improved computational stability compared to classic numerical algorithms. The main peculiarity of the non-uniform LPG transmission gratings, compared to the Bragg gratings, is that their optical fields oscillate rapidly. However, the quasi-analytical approach proposed allows one to reduce to a minimum the number of sampling points, without, at the same time, losing accuracy in the solution, i.e. the method possesses an improved efficiency. The algorithm convergence was also improved by using the relations of the law of conservation of energy between the interacting waves. It has been shown that the algorithm works adequately even for the case of strongly over-coupled co-propagating lightwave modes, as we demonstrate in several examples of the synthesis of ultra-wide pass-band optical filters (FWHM of 100-200 nm).

773.1.#.t: Revista Mexicana de Física; Vol 51, No 006 (2005)

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Artículo

Synthesis of nonuniform long-period optical gratings with a continuous refractive index profile

Llamas, I. F.; Kolokoltsev, O. V.; Svyryd, V. A.; Ordóñez Romero, C. L.

Facultad de Ciencias, UNAM, publicado en Revista Mexicana de Física, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Facultad de Ciencias, UNAM
Revista
Revista Mexicana de Física
Repositorio
Revistas UNAM
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Llamas, I. F., et al. (2005). Synthesis of nonuniform long-period optical gratings with a continuous refractive index profile. Revista Mexicana de Física; Vol 51, No 006. Recuperado de https://repositorio.unam.mx/contenidos/41292

Descripción del recurso

Autor(es)
Llamas, I. F.; Kolokoltsev, O. V.; Svyryd, V. A.; Ordóñez Romero, C. L.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Synthesis of nonuniform long-period optical gratings with a continuous refractive index profile
Fecha
2005-01-01
Resumen
In this work we present a new method for such a non-trivial problem as the synthesis of optical filters based on non-uniform Long-Period Fiber Gratings (LPGs). The method is based on a real-coded genetic algorithm (GA) with a new quasi-analytical procedure for solving the Zakharov-Shabat Inverse Problem. The method possesses an improved computational stability compared to classic numerical algorithms. The main peculiarity of the non-uniform LPG transmission gratings, compared to the Bragg gratings, is that their optical fields oscillate rapidly. However, the quasi-analytical approach proposed allows one to reduce to a minimum the number of sampling points, without, at the same time, losing accuracy in the solution, i.e. the method possesses an improved efficiency. The algorithm convergence was also improved by using the relations of the law of conservation of energy between the interacting waves. It has been shown that the algorithm works adequately even for the case of strongly over-coupled co-propagating lightwave modes, as we demonstrate in several examples of the synthesis of ultra-wide pass-band optical filters (FWHM of 100-200 nm).
Tema
Long-period fiber gratings; synthesis; optical filters; genetic algorithm
Idioma
eng
ISSN
2683-2224 (digital); 0035-001X (impresa)

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