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A Design Method for Low Dispersion Polarization-Maintaining Optical Fibers with Two Hollow Pits
Shin-ichi FURUKAWA Masayuki KASHIMA Takashi HINATA Toshio HOSONO
Publication
IEICE TRANSACTIONS on Electronics
Vol.E74-C
No.9
pp.2902-2909 Publication Date: 1991/09/25 Online ISSN:
DOI: Print ISSN: 0916-8516 Type of Manuscript: Special Section PAPER (Special Issue on OFSET '90) Category: Optical Fiber Keyword:
Full Text: PDF(542.8KB)>>
Summary:
A design method to realize the large modal birefringence and the low dispersion (within 2 ps/km/nm) over the spectral range 1.30-1.55µm is investigated for the polarization-maintaining optical fibers with the crescent or circular hollow pits. When the low dispersion is satisfied for the HE11o mode, one of two orthogonally polarized HE11 modes, it is found that (1) the crescent pits type has a larger modal birefringence than the circular pits type for Δ1 1.21% (Δ1: the relative index difference), and (2) the maximum modal birefringence of the crescent pits type is nearly equal to that of the circular pits type for Δ1 1.21%.
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