Open AccessActive polarization stabilization in optical fibers suitable for quantum key distribution
Author(s) -
Jie Chen,
Guang Wu,
Yao Li,
E Wu,
Heping Zeng
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.017928
Subject(s) - quantum key distribution , polarization (electrochemistry) , optics , photon , photon polarization , optical fiber , polarization mode dispersion , materials science , physics , optoelectronics , chemistry
Polarization feedback control of single-photon pulses has been achieved in long-distance fibers for more than 10 hours, which facilitated "one-way" polarization-encoded quantum key distribution with long-term stabilities. Experimental test of polarization encoding in 75 km fibers demonstrated that the single-photon polarization transformation in long-distance fibers could be controlled to provide a typical QBER of (3.9+/-1.5)% within a long-term operation of 620 minutes.