Light propagation in thermally expanded core fibers with graded-index

• Autorzy: Kovacevic M. S. , Djordjevich A. , Nikezic D.
• Języki publikacji: EN

Abstrakty

EN

Light propagation is analyzed in thermally expanded core (TEC) fibers with graded-index profile. Used as power mixers among others, their core structure at the boundary between the heated and non-heated regions is represented by linear taper. Ray optics is used as the transverse taper dimensions are large relative to the wavelength of propagating light. Trajectories of meridian rays are derived analytically. Numerical results presented show ray trajectories as functions of the position within the taper and taper slope. These are modulated sinusoidal functions whose amplitude and period rise with the taper radius. Both, bound and leaky rays have been examined.

Słowa kluczowe

EN

optical fibers; geometric optics approach; thermally diffused expanded core fibers; ray trajectories; linearly taper model

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2009
• Tom: Vol. 39, nr 2
• Strony: 267--276
• Opis fizyczny: bibliogr. 11 poz.,

Twórcy

autor

Kovacevic M. S.

autor

Djordjevich A.

autor

Nikezic D.

• Faculty of Science, Department of Physics, University of Kragujevac, R. Domanovica 12, 34000 Kragujevac, Serbia

Bibliografia

• [1] ANKIEWICZ A., PASK C., Geometric optics approach to light acceptance and propagation in graded index fibres, Optical and Quantum Electronics 9(2), 1977, pp. 87–109.
• [2] ANKIEWICZ A., Comparison of wave and ray techniques for solution of graded index optical waveguide problems, Optica Acta 25(5), 1978, pp. 361–373.
• [3] ZUBIA J., ALDABALDETREKU A., DURANA G., ARRUE A., BUNGE C.-A., POISEL H., Geometric optics analysis of multi-step index optical fibers, Fiber and Integrated Optics 23(2), 2004, pp. 121–156.
• [4] HANAFUSA H., HORIGUCHI M., NODA J., Thermally-diffused expanded core fibres for low-loss and inexpensive photonic components, Electronics Letters 27(21), 1991, pp. 1968–1969.
• [5] HAIBARA T., NAKASHIMA T., MATSUMOTO M., HANAFUSA H., Connection loss reduction by thermally--diffused expanded core fiber, IEEE Photonics Technology Letters 3(4), 1991, pp. 348–350.
• [6] STONE J., STULZ L.W., MARCUSE D., BURRUS C.A., CENTANNI J.C., Narrow-band FiEnd etalon filters using expanded-core fibers, Journal of Lightwave Technology 10(12), 1992, pp. 1841–1854.
• [7] KIHARA M., MATSUMOTO M., HAIBARA T., TOMITA S., Characteristics of thermally expanded core fiber, Journal of Lightwave Technology 14(10), 1996, pp. 2209–2214.
• [8] KLIROS G. S., TSIRONIKOS N., Variational analysis of propagation characteristics in thermally diffused expanded core fibers, Optik: International Journal for Light and Electron Optics 116(8), 2005, pp. 365–374.
• [9] DIVARI P.C., KLIROS G.S., Modal and coupling characteristics of low-order modes in thermally diffused expanded core fibers, Optik: International Journal for Light and Electron Optics 120(5), 2009, pp. 222–230.
• [10] BORN M., WOLF E., Principles of Optics, 4th Edition, Pergamon Press, London 1970.
• [11] KRUEGER D.A., Spatial varying index of refraction: an open ended undergraduate topic, American Journal of Physics 48(3), 1980, pp. 183–188.