EOSAM 2022
Open Access

Figure 5


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Revisited figure of Rashleigh’s letter [2] of 1983: the slope of the various dashed secant lines in color is the phase birefringence B = ∆neff, as it is defined today. Fibers A (green) and B (cyan) are bow-tie fibers. Fiber C (red) combines stress-induced birefringence with form birefringence. Free-space wavenumber k should be read 7.39 rad·μm−1, and it corresponds to a wavelength λ of 0.85 μm.

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