УДК: 666.189.21, 666.22

Investigation of the single-mode operating regime of microstructured lightguides with radiation-leakage channels

Demidov, V.V., Dukelskiy, K.V., Ter-Nersesyants, E.V., Shevandin, V.S.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Демидов В.В., Дукельский К.В., Тер-Нерсесянц Е.В., Шевандин В.С. Исследование одномодового режима работы микроструктурированных световодов с каналами вытекания излучения // Оптический журнал. 2013. Т. 80. № 5. С. 65–70.

Demidov V.V., Dukelskiy K.V., Ter-Nersesyants E.V., Shevandin V.S. Investigation of the single-mode operating regime of microstructured lightguides with radiation-leakage channels [in Russian] // Opticheskii Zhurnal. 2013. V. 80. № 5. P. 65–70.

For citation (Journal of Optical Technology):

V. V. Demidov, K. V. Dukel’skiĭ, E. V. Ter-Nersesyants, and V. S. Shevandin, "Investigation of the single-mode operating regime of microstructured lightguides with radiation-leakage channels," Journal of Optical Technology. 80(5), 309-312 (2013). https://doi.org/10.1364/JOT.80.000309

Abstract:

A comparative analysis has been carried out of the modal composition and radiation-damping spectra in microstructured lightguides based on quartz glass with a large core for transporting powerful light fluxes and differing in the number of cycles of holes around the core. The geometrical parameters of the holey core that promote the propagation regime of the fundamental mode under conditions of differential mode losses have been experimentally determined. It is shown that, in lightguides with a hexagonal cladding structure and less than three cycles of holes, a stable single-mode regime can be achieved for a radiation- damping value greater than 0.1 dB/m at a wavelength of 1550 nm.

Keywords:

microstructured lightguide, lightguide core, modal composition of radiation

Acknowledgements:

The authors thank staff member P. M. Agruzov of the A. F. Ioffe Physics-and-Engineering Institute for help in carrying out the studies of the modal content of the radiation in the lightguides.

OCIS codes: 060.2400, 060.2430, 060.4005

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