Journal article
Stress induced birefringence in hybrid TIR/PBG guiding solid photonic crystal fibers
We report on two types of polarization maintaining solid photonic crystal fibers that guide light by a combination of a photonic bandgap and total internal reflection. Group and phase birefringence are studied experimentally and numerically for stress-applying parts made from B-doped and F-doped silica.
The stress field originating from Ge-doped cladding rods is shown to interfere with the stress field from the B-doped and F-doped rods. Since the differential expansion coefficients of B-doped and F-doped silica have opposite signs this interference is either destructive or constructive. Consequently, we found that the fiber with F-doped stress applying parts has the highest modal phase birefringence, and polarization cross talk is characterized by an h-parameter below 3⋅10−5 m−1.
Language: | English |
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Year: | 2010 |
Pages: | 14031-14040 |
ISSN: | 10944087 |
Types: | Journal article |
DOI: | 10.1364/OE.18.014031 |