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AO Modulators System for Recirculating Loop System0 pages
Brimrose Corporation of America
19 Loveton Circle,
Sparks, MD 21152 USA
Phone: +1 410 472-7070
Fax: +1 410 472-7960
E-Mail: offices@brimrose.com
Web: http://www.brimrose.com
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AO Modulators System for Recirculating Loop System
For application of simulating and testing of long distance fiber-optic communication lines Brimrose
has developed a fiber-pigtailed AO modulator system. The recirculating loop system consists of 2 fiberpigtailed
AO modulators and a corresponding RF driver. One of the modulators is placed outside the loop to
defined the transmitted pulse width and the second devices is placed inside the loop to defined the distance of
the pulse transmission which corresponds directly to the length of the long distance fiber-optic line.
Since conventional AO devices will frequency shift the transmitted light by the acoustic carrier frequency, the
Brimrose approach utilizes a no-shift AO devices inside the loop which does not complicate testing nor degrade
system performance.
