The influence of heat generation on propagating modes in a high-power large-mode-area photonic crystal fibre laser was investigated. The temperature distribution, temperature gradient, thermally induced stresses were first simulated. Then the Maxwell’s wave equation with taking the thermal refractive index tensor into account was solved to observe the effects of heat on propagating modes. The results show sensible modifications for TE, TM, and EH mode profiles. However, the linear polarized fundamental mode (HE) was not affected under thermal effects.

Keywords: thermal effects, photonic crystal fibre laser, thermal dispersion, thermal stress
PACS: 42.55.Tv, 42.60.JF, 44.10.+i

KAITIMO ĮTAKOS DIDELĖS GALIOS FOTONINIO KRISTALO ŠVIESOLAIDINIO LAZERIO SKLINDANČIOMS MODOMS SKAITMENINIS MODELIAVIMAS
L. Mousavi^a, M. Sabaeian^b, H. Nadgaran^c
aIslamiškasis Azado universitetas, Dezfulis, Iranas
^bAhvazo šahido Čamrano universitetas, Ahvazas, Iranas
^cŠirazo universitetas, Širazas, Iranas

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