УДК: 621.372.8

Characteristics of the modes of planar W-lightguides with arbitrary contrast of the refractive-index profile

Otrokhov, S.Y., Chamorovskiy, Y.K., Shatrov, A.D.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Отрохов С.Ю., Чаморовский Ю.К., Шатров А.Д. Характеристики мод планарных W-световодов с произвольной контрастностью профиля показателя преломления // Оптический журнал. 2014. Т. 81. № 1. С. 59–65.

Otrokhov S.Yu., Chamorovskiy Yu.K., Shatrov A.D. Characteristics of the modes of planar W-lightguides with arbitrary contrast of the refractive-index profile [in Russian] // Opticheskii Zhurnal. 2014. V. 81. № 1. P. 59–65.

For citation (Journal of Optical Technology):

S. Yu. Otrokhov, Yu. K. Chamorovskiĭ, and A. D. Shatrov, "Characteristics of the modes of planar W-lightguides with arbitrary contrast of the refractive-index profile," Journal of Optical Technology. 81(1), 44-49 (2014). https://doi.org/10.1364/JOT.81.000044

Abstract:

The mode characteristics of a planar five-layer W-lightguide with various refractive indices of the intermediate layer are investigated, based on a numerical solution of the dispersion equation. It is shown that it is easy to ensure the single-mode regime in a broad range of wavelengths, the necessary field concentration in a large-diameter lightguide core, and efficient filtering of the evanescent modes in W-lightguides by appropriately choosing the geometrical and optical parameters.

Keywords:

planar five-layer W-lightguide, dispersion equation, refractive index of intermediate layer

OCIS codes: 060.2400, 130.2790, 230.7390

References:

1. W. J. Wadsworth, R. M. Percival, G. Bouwmans, J. C. Knight, T. A. Birks, T. D. Hedley, and P. St. J. Russell, “Very high numerical aperture fibers,” IEEE Photon. Technol. Lett. 16, 843 (2004).
2. S. Yu. Otrokhov, Yu. K. Chamorovskiı˘, and A. D. Shatrov, “Evanescent modes of W-lightguides with a large difference in the refractive-index profile,” Radiotekh. Élektron. 55, 1185 (2010).
3. A. M. Kurbatov and R. A. Kurbatov, “New optical W-fiber Panda for fiber optic gyroscope sensitive coil,” Pis’ma Zh. Tekh. Fiz. 36, No. 17, 23 (2010) [Tech. Phys. Lett. 36, 789 (2010)].
4. A. M. Kurbatov and R. A. Kurbatov, “Fiber polarizer based on W-lightguide Panda,” Pis’ma Zh. Tekh. Fiz. 37, No. 13, 70 (2011) [Tech. Phys. Lett. 37, 626 (2011)].
5. Yu. S. Skibina, V. V. Tuchin, V. I. Beloglazov, G. Shteinmaeer, I. L. Betge, R. Wedell, and N. Langhoff, “Photonic crystal fibres in biomedical investigations,” Kvant. Elektron. (Moscow) 41, 284 (2011) [Quantum Electron. 41, 284 (2011)].
6. M. E. Likhachev, S. L. Semenov, M. M. Bubnov, E. M. Dianov, V. F. Khopin, M. Yu. Salganskiı˘, M. A. Gurjanov, R. Jamier, P. Viale, S. Février, and J. Blondy, “Development and study of Bragg fibres with a large mode field and low optical losses,” Kvant. Elektron. (Moscow) 36, 581 (2006) [Quantum Electron. 36, 581 (2006)].
7. N. S. Bakhvalov, N. P. Zhidkov, and G. M. Kobel’kov, Numerical Methods (Nauka, Moscow, 1987).