Free Space Acousto-Optic Frequency Shifters

The Brimrose Free Space Acousto-Optic Frequency Shifter (AOFS) with RF driver is used to modify the frequency of the optical beam. Due to a Doppler shift, the frequency of the diffracted first order optical beam in the AO modulator or AO frequency shifter is shifted in frequency (wavelength) by the acoustic carrier frequency (wavelength).

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.


KEY FEATURES

  • Compact Integrated Design
  • Wide Spectral Wavelength Range
  • Low Drive Power
  • Fast Switching Speed
  • High Diffraction Efficiency
  • Good Temperature Stability
  • Custom Configurations Available

APPLICATIONS

Industrial:

  • Vibrometry
  • Process Control
  • Pulse Picking or Power Control
  • Atom Cooling

Scientific:

  • Optical Heterodyning
  • Interferometric System
  • Laser Doppler Velocimetry

OEM Designs


specifications

Model # Spectral Range
(nm)
Diffraction
Efficiency
Up To (%)
Frequency
Shift
(MHz)
Active
Aperature
(mm)
Material
AMF-90-2-2.1 1000-2200 15 90 1.0 AM
AMF-55-1.3 1000-2200 80 5.5 2.0 AM
AMF-100-1.3 1000-2200 80 100 2.0 AM
GEF-40-10 2000-12,000 75 40 2.0 GE
GEF-60-1.5 2000-12,000 75 60 1.5 GE
GEF-80-20 2000-12,000 70 80 1.0 GE
GPF-250-100 590-1000 60 250 0.75 GaP
GPF-650-225 590-1000 50 650 0.18 GaP
GPF-1000-500 590-1000 40 1000 0.076 GaP
GPF-1500-1000 590-1000 10 1500 0.076 GaP
GPF-1700-500 590-1000 30 1700 0.076 GaP
IPF-200-50 1000-1600 40 200 0.75 InP
IPF-400-200 1000-1600 35 400 0.50 InP
IPF-600-200 1000-1600 30 600 0.18 InP
IPF-800-300 1000-1600 20 800 0.076 InP
IPF-1000-350 1000-1600 15 1000 0.076 InP
IPF-1300-400 1000-1600 10 1300 0.076 InP
QZF-80-20 200-4500 75 80 1.0 SiO2
QZF-150-30 200-4500 75 150 0.75 SiO2
QZF-210-40 200-4500 75 210 0.5 SiO2
TEF-200-50 400-1600 60 200 0.75 TEO2
TEF-270-100 400-1600 60 270 0.75 TEO2
TEF-540-200 400-1600 40 540 0.18 TEO2
TEF-600-400 400-1600 40 600 0.18 TEO2
TEF-1000-300 400-1600 40 1000 0.076 TEO2
TEF-1700-350 400-1600 15 1700 0.076 TEO2

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