Acousto-Optic Frequency Shifters0 pages

R O B U ST . R E L I A B L E . A C C U R A T E

Fiber Pigtailed
Acousto-Optic Frequency Shifters

Brimrose offers a large variety of RF
drivers compatible with our AO Frequency
Shifters. Typically those are fixed frequency
or variable frequency drivers.

KEY FEATURES
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Low Insertion Loss
Broad Wavelength Range
Low Electric Power Consumption
Good Temperature Stability and Reliability
Custom Configurations Available

Fiber Pigtailed Acousto-Optic Frequency Shifters
Brimrose’s Fiber Coupled Acousto-Optic Frequency Shifter systems are
used to shift the frequency of various optical signals. Due to a Doppler
shift, the frequency of the diffracted 1-st order optical beam in AO
modulator or AO frequency shifter is shifted in frequency (wavelength)
by the acoustic carrier frequency (wavelength).

APPLICATIONS
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Fiber Sensing
Heterodyne Detection
Interferometric Fiber Sensor Systems
Laser Doppler Configurations
OEM Designs

If the incident acoustic wave is introduced in the direction of the
incident optical wave, the laser frequency shifts towards the higher
side. If the incident acoustic wave is introduced in the opposite
direction of the incident optical wave, the laser shifts toward the lower
frequency side.
The typical 3 dB spectral range of an AOFS device is ~60-120 nm and
the 3 dB frequency shift range is ~10% of the center frequency. For
wide bandwidth applications Brimrose developed an AOFS with an
extended frequency shift range up to 200 MHz.

Brimrose Corporation of America

19 Loveton Cir. Hunt Valley Loveton Center . Sparks, MD. 21152
Phone: +1 410 472-7070 . Fax: +1 410 472-7960 . E-Mail: office@brimrose.com . Web: www.brimrose.com