Numerical analysis of highly birefringent photonic crystal fibers with Bragg reflectors

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We analyze theoretically the coupling properties of Bragg gratings written in highly birefringent photonic crystal fibers with doped core and show how they can be tuned by the parameters of a microstructured fiber. We apply the coupled mode theory combined with a fully vectorial mode solver based on on the plane-wave method. The results indicate large differences in interaction with the grating for the two linearly polarized fundamental modes. We show fiber designs, which provide single-mode operation with high birefringence and at the same time a high coupling efficiency of the grating. Such features can be used in fiber sensors, fiber laser configurations or to introduce a polarization dependent feedback in a long external cavity system with a semiconductor laser.


Original languageEnglish
Pages (from-to)535-545
JournalOptical and Quantum Electronics
Publication statusPublished - May 2006


  • Bragg gratings, coupled mode theory, photonic crystal fibers

ID: 100370