Abstract
In this paper, we report on the performance of the second implementation
of the optical counter-phase RF interference cancellation technique.
Referred to as the opto-cancellation system, it has demonstrated
narrowband-signal cancellation exceeding 80 dB. Also, broadband signals of
80-MHz bandwidth, whose center frequencies ranged from 1 GHz–20
GHz, were cancelled down to the system noise floor; where that cancellation
was approximately uniform over the full bandwidth of each signal. It is not
known that other interference cancellation systems can achieve such low
cancellation depths, over such a wide frequency bandwidth, at the time of
this writing. In addition to describing the system's performance in terms of
experimental results, we also characterize the system's performance
analytically. Although the sensitivity, gain, linearity, and noise figure of
the current system implementation are known, the analysis presented here
will be useful for future implementations of the optical counter-phase RF
interference cancellation technique. The analysis will also aid in
understanding the trade-offs and limitations of the current system
implementation, as well as future implementations.
© 2010 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription
Add to BibSonomy