M Antkowiak et al 2005 J. Opt. A: Pure Appl. Opt. 7 763 doi:10.1088/1464-4258/7/12/009
Phase and group modal birefringence of triple-defect photonic crystal fibres
M Antkowiak1,2, R Kotynski1,3, T Nasilowski1, P Lesiak4, J Wojcik5, W Urbanczyk6, F Berghmans1,2 and H Thienpont1
Show affiliationsWe discuss the phase and group modal birefringence in photonic crystal fibres (PCFs) with an elongated core. Owing to large form birefringence, these two types of birefringence in such PCFs may not only have opposite signs, but their absolute value can also differ by several orders of magnitude. We also show that PCFs offer the unique possibility of having a large phase birefringence and a negligible polarization mode dispersion at the same time. Using a fully vectorial mode solver, we show how these parameters can be tailored by a proper choice of the geometry of the PCF. We demonstrate both numerically and experimentally the strong wavelength dependence of phase and group modal birefringence in triple-defect photonic crystal fibres (PCFs).
- PACS
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42.70.Qs Photonic bandgap materials
42.81.Gs Birefringence, polarization
42.79.Sz Optical communication systems, multiplexers, and demultiplexers
- Subjects
- Dates
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Issue 12 (December 2005)
Received 11 July 2005, accepted for publication 11 October 2005
Published 4 November 2005
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Phase and group modal birefringence of triple-defect photonic crystal fibres
M Antkowiak et al 2005 J. Opt. A: Pure Appl. Opt. 7 763
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