Técnica de descomposición modal de imágenes modificada S2 en fibras de pocos modos
Resumen
El conocimiento preciso de contenido modal en fibras que soportan diferentes modos ópticos es importante para entender las propiedades de las fibras y el rendimiento de un sistema. Técnicas directas de caracterización modal se han vuelto populares por permitir un análisis de modo bastante preciso así como la recuperación experimental de la amplitud del modo y su perfil espacial de fase. Sin embargo, en algunos escenarios específicos, ciertas limitaciones tales como una recuperación completa de modos y la resolución de los mismos han tenido que superarse con estos métodos. En este trabajo son presentados algunas modificaciones a un método directo de recuperación modal que permita eliminar la mayoría de estas limitaciones. Se presenta y se estudia una implementación matemática que consiste en la adición de una referencia externa al método, así como la explicación detallada del algoritmo de recuperación modal propuesto.
Citas
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Amezcua-Correa, R., G´erôme, F., Leon-Saval, S. G., Broderick, N. G. R., Birks, T. A., & Knight, J. C. (2008). Control of surface modes in low loss hollow-core photonic bandgap fibers. Opt. Express, 16(2):1142–1149. doi: 10.1364/OE.16.001142
Carpenter, J., Eggleton, B. J., & Schröder, J. (2016). Polarization-resolved cross-correlated (c2) imaging of a photonic bandgap fiber. Opt. Express, 24(24):27785–27790. doi: 10.1364/OE.24.027785
Jasapara, J. & Yablon, A. D. (2012). Spectrogram approach to S2 fiber mode analysis to distinguish between dispersion and distributed scattering. Opt. Lett., 37(18):3906–3908. doi: oi: 10.1364/OL.37.003906
Jung, Y., Sleiffer, V. A. J. M., Baddela, N., Petrovich, M. N., Hayes, J. R., Wheeler, N. V... Richardson, D. J. (2013). First demonstration of a broadband 37-cell hollow core photonic bandgap fiber and its application to high capacity mode division multiplexing. In 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), (p. 1-3).
Lamilla, E. (2019). Characterization and manipulation of optical modes in photonic crystal fibers: Caracteriza¸cao e manipulacao de modos opticos em fibras de cristal fotonico. Repositorio.Unicamp.br. Retrieved from http://repositorio.unicamp.br/jspui/handle/REPOSIP/335703
Lamilla, E., Aldaya, I., Serpa, C. M., Jarshel, P., & Dainese, P. C. (2016). Modal content in a 7-cell hollow-core photonic bandgap fiber and its depen- dence with offset launch conditions. In Latin America Optics and Photonics Conference, page LTu3C.3. Optical Society of America. doi: 10.1364/LAOP.2016.LTu3C.3
Lamilla, E., Faria, M. S., Aldaya, I., Jarschel, P. F., Pita, J. L., & Dainese, P. (2018). Characterization of surface-states in a hollow core photonic crystal fiber. Opt. Express, 26(25):32554–32564. doi: 10.1364/OE.26.032554
Newkirk, A. V., Antonio-Lopez, J. E., Anderson, J., Alvarez-Aguirre, R., Ez- naveh, Z. S., Lopez-Galmiche,... Schu¨lzgen, A. (2016). Modal analysis of antiresonant hollow core fibers using s2 imaging. Opt. Lett., 41(14):3277–3280. doi: 10.1364/OL.41.003277
Nguyen, D. M., Blin, S., Nguyen, T. N., Le, S. D., Provino, L., Thual, M., & Chartier, T. (2012). Modal decomposition technique for multimode fibers. Appl. Opt., 51(4):450–456. doi: 10.1364/AO.51.000450
Nicholson, J., Meng, L., Fini, J., Windeler, R., DeSantolo, A., Monberg, E.,... Ortiz, R. (2012). Measuring higher-order modes in a low-loss, hollow-core, photonic-bandgap fiber. Opt. Express, 20(18):20494–20505. doi: 10.1364/OE.20.020494
Nicholson, J. W., Yablon, A. D., Ramachandran, S., & Ghalmi, S. (2008). Spatially and spectrally resolved imaging of modal content in large-mode- area fibers. Opt. Express, 16(10):7233–7243. doi: 10.1364/OE.16.007233
Schimpf, D. N., Barankov, R. A., & Ramachandran, S. (2011). Cross- correlated (c2) imaging of fiber and waveguide modes. Opt. Express, 19(14):13008–13019. doi: 10.1364/OE.19.013008
Schmidt, O. A., Garbos, M. K., Euser, T. G., & Russell, P. S. J. (2012). Metrology of laser-guided particles in air-filled hollow-core photonic crystal fiber. Opt. Lett., 37(1):91–93. doi: 10.1364/OL.37.000091
Shapira, O., Abouraddy, A. F., Joannopoulos, J. D., & Fink, Y. (2005). Complete modal decomposition for optical waveguides. Phys. Rev. Lett., 94:143902. doi: 10.1103/PhysRevLett.94.143902
Song, K. Y. & Kim, Y. H. (2013). Characterization of stimulated brillouin scattering in a few-mode fiber. Opt. Lett., 38(22):4841–4844. doi: 10.1364/OL.38.004841
West, J. A., Smith, C. M., Borrelli, N. F., Allan, D. C., & Koch, K. W. (2004). Surface modes in air-core photonic band-gap fibers. Opt. Express, 12(8):1485–1496. doi: 10.1364/OPEX.12.001485
