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Investigation of V-type photonic crystal fiber with high birefringence
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According to the full-vector finite element method, a new kind of V-shape photonic crystal fiber with high birefringence is proposed. Simulation results show that the V-shape photonic crystal fiber has a birefringence of 1.239×10-2 at a wavelength of 1.55 μm, when its cladding air hole pitch, large air hole diameter, small air hole diameter are 1.0 μm, 0.95 μm and 0.6 μm, respectively. There are two zero dispersion wavelengths in the visible and the near-infrared region respectively, and the abnormal dispersion zone includes the operation wavelength of Ti:sapphire laser, which is advantageous for nonlinear generation of photonic crystal fibers. The difference in air filling fraction between fast and slow axis can be used as a sensor for the weak strain.
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Title: Investigation of V-type photonic crystal fiber with high birefringence
Description:
According to the full-vector finite element method, a new kind of V-shape photonic crystal fiber with high birefringence is proposed.
Simulation results show that the V-shape photonic crystal fiber has a birefringence of 1.
239×10-2 at a wavelength of 1.
55 μm, when its cladding air hole pitch, large air hole diameter, small air hole diameter are 1.
0 μm, 0.
95 μm and 0.
6 μm, respectively.
There are two zero dispersion wavelengths in the visible and the near-infrared region respectively, and the abnormal dispersion zone includes the operation wavelength of Ti:sapphire laser, which is advantageous for nonlinear generation of photonic crystal fibers.
The difference in air filling fraction between fast and slow axis can be used as a sensor for the weak strain.
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