Theory of the effect of geomagnetic field on plug-and-play schemes for fiber-based quantum key distribution systems
Antonio Mecozzi, Cristian Antonelli, Misha Brodsky · Optics Letters · 2008
We quantify the instantaneous polarization rotation of the optical field by the Faraday birefringence in a long spun-fiber link terminated by a Faraday mirror. Obtained analytical results agrees well with computer simulations and are consistent with previous experimental findings.