Effects of hydrostatic pressure on phase and group modal birefringence in microstructured holey fibers

Abstract

We calculated the sensitivity of phase (dB/dp) and group (dG/dp) modal birefringence to hydrostatic pressure versus wavelength in two birefringent holey fibers of different construction, where B is the phase modal birefringence, G is the group modal birefringence, and p is the pressure applied to the fiber. The contributions of the geometrical effects that were related only to deformation of the holey structure and the stress-related contribution to the overall pressure sensitivities were analyzed separately. Our results show that these two factors decrease the phase modal birefringence in both structures, which results in negative signs of dB/dp and dG/dp. Furthermore, we demonstrate that the geometrical effects are much weaker than the stress-related effects and contribute only a few percent to the overall pressure sensitivity.

Experimental study of polarization properties of highly birefringent photonic crystal fibers

“…Figure 2(a) shows that for PCF2 and PCF3, phase delay is found to grow almost linearly with wavelength. This is in good agreement with simulations [6,[15][16][17] and also with other similar experiments [5,6,8]. Therefore, it seems that the increase of birefringence with wavelength is a quite general property of a PCF.…”

Phase Sensitivity to Acoustic Pressure of Microstrustured Optical Fibers: A Comparison Study

“…The elasto-optic effect determines the index variation due to applied acoustic pressure. The general linear stress-optical relation is used to calculate the change of n eff due to the applied acoustic pressure and is given by [13,14]:…”

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