Apparatus and method for adjustment of interference contrast in an interferometric quantum cryptography apparatus by tuning emitter wavelength
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 27, 2012
Grant Date -
Jan 8, 2009
app pub date -
Jul 7, 2007
filing date -
Jul 7, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus and method are disclosed for maximizing interference contrast in an interferometric quantum cryptography system to detect eavesdropping by utilizing a tunable emitter station in communications with a receiver station via a quantum communications channel and a “public†communications channel. The tunable emitter station tracks and compensates for interferometer drifts by adjusting the interference contrast of the QC system to minimize or eliminate inherent perturbations induced into key bit transmissions. Tuning of the photo emitter's output wavelength is accomplishable using temperature and/or drive current adjustment of the emitter's tunable optical subsystem.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully