Optical fibers composed of highly birefringent material are studied. One of the two fundamental modes can be made leaky when the birefringence is sufficiently large. This suggests a novel single-mode, single-polarization fiber design that can be realized by stress-induced birefringence. The leakage rate is calculated by a perturbation method, which accounts for degeneracy between a bound mode and a packet of radiation modes.
© 1983 Optical Society of America
Allan W. Snyder and Frank Rühl, "Single-mode, single-polarization fibers made of birefringent material," J. Opt. Soc. Am. 73, 1165-1174 (1983)