Application of picosecond optical guiding-center solitons in single-mode fibers to precise synchronization of a radio-interferometer
Picosecond optical guiding-center solitons of the first order, peculiar for the cubic Ginzburg–Landau systems, are considered as the sync-signal carriers, being attractive for the transmission through optical fiber network. At first, we analyze the model, governed by the complex cubic Ginzburg–Landa...
| Autores: | , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2007 |
| País: | México |
| Recursos: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | inglés |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/931 |
| Acesso em linha: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/931 |
| Access Level: | acceso abierto |
| Palavra-chave: | info:eu-repo/classification/Guiding-center soliton/Guiding-center soliton info:eu-repo/classification/Sync-network/Sync-network info:eu-repo/classification/Interferometric technique/Interferometric technique info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/22 info:eu-repo/classification/cti/2209 |
| Resumo: | Picosecond optical guiding-center solitons of the first order, peculiar for the cubic Ginzburg–Landau systems, are considered as the sync-signal carriers, being attractive for the transmission through optical fiber network. At first, we analyze the model, governed by the complex cubic Ginzburg–Landau equation in a reduced form, and present an approximate analytical description for the evolution of the main parameters inherent in guiding-center solitons. Then, these soliton-like pulses are compared with fundamental solitons adiabatically perturbed by low losses in optical fiber, being also potentially suitable to be the sync-signal carriers. This comparison suggests a conclusion that guiding-center solitons have considerable advantages in applying as lock-on signals from the viewpoints of energy consumption and ease of implementation. Interferometric technique of measuring time intervals with the help of train-average field strength correlation functions to a sub-picosecond accuracy is developed in the event of arriving the optical soliton-like pulses at a high repetition rate. Such an advantage of this technique as the ability of operating on the trains of low-power picosecond optical pulses, in particular, guiding-center solitons in single-mode fibers is revealed. Results of trial experiments with the mock-up, implemented as optical part of the sync-network for a short base radio-interferometer, are presented. |
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