Asymmetric mode coupling in arc-induced long-period fiber gratings
| Autor: | Romeo Selvas-Aguilar, J.A. Guerrero-Viramontes, Víctor M. Duran-Ramírez, Alejandro Martinez-Rios, D. Toral-Acosta, Ismael Torres-Gómez, G. Salceda Delgado, A. Castillo-Guzman, G. Anzueto-Sanchez |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Fabrication business.industry media_common.quotation_subject 02 engineering and technology Long-period fiber grating 021001 nanoscience & nanotechnology 01 natural sciences Asymmetry Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Wavelength Transverse plane Optics 0103 physical sciences Mode coupling Insertion loss Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology business Intensity (heat transfer) media_common |
| Zdroj: | Optics Communications. 364:37-43 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2015.10.061 |
| Popis: | An extensive experimental study of the transverse modal field characteristics of mircrobend arc-induced long-period fiber gratings is presented. A wavelength scanning of the near-field intensity pattern inside each loss band in the transmission spectrum, shows a clear asymmetry in the transverse intensity distribution resulting from the fabrication method. This asymmetry reflects as a 10.7 dB difference in the notch depths for two orthogonal polarizations. Though a one year study, it was found that that environmental conditions during fabrication strongly affects the gratings characteristics. The best performance was obtained during the autumn season, where microbend arc-induced long-period fiber gratings produce wavelength filters with short lengths (between 10 and 30 periods for depths in excess of 20 dB) and the insertion loss may be as low as 0.12 dB. |
| Databáze: | OpenAIRE |
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