Method of the balancing of Mach-Zehnder fiber-optic interferometers in single-pass quantum cryptography
S. P. Kulik, S. N. Molotkov, T. A. Potapova · Journal of Experimental and Theoretical Physics Letters · 2014
A distributed balancing method for single-pass quantum cryptographic systems with phase encoding has been proposed. This method allows completely automated balancing, is quite universal, and can be used in other optical experiments.