Bragg Gratings Induced in Birefringent Optical Fiber with an Elliptical Stress Cladding
Figure 3
FBG image in birefringent optical fiber with an elliptical stress cladding with 16 mol. % GeO2, where 1 is core, 2 is heterogeneous periodical structure, 3 is boundary between 20 μm cladding and stress cladding, and 4 is outer boundary of the fiber.
