Cryptography – Key management – Key distribution
Reexamination Certificate
2004-06-25
2009-10-20
Zand, Kambiz (Department: 2439)
Cryptography
Key management
Key distribution
C380S044000, C380S256000, C396S039000, C396S040000
Reexamination Certificate
active
07606371
ABSTRACT:
A two-way actively stabilized QKD system that utilizes control signals and quantum signals is disclosed. Because the quantum signals do not traverse the same optical path through the system, signal collisions in the phase modulator are avoided. This allows the system to have a higher transmission rate than a two-way system in which the quantum signals traverse the same optical path. Also, the active stabilization process, which is based on maintaining a fixed relationship between an intensity ratio of interfered control signals, is greatly simplified by having the interferometer loops located all in one QKD station.
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LaGasse Michael
Trifonov Alexei
Zavriyev Anton
MagiQ Technologies, Inc.
Opticus IP Law PLLC
Tabor Amare
Zand Kambiz
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