Free Space Acousto-Optic Tunable Filters

The Brimrose Acousto-Optic Tunable Filter (AOTF) is a solid state acousto-optic device with no moving parts. It functions as a tunable transmissive filter. It is able to precisely and rapidly adjust the wavelength, and intensity of the diffracted/filtered light by varying the RF power.

Brimrose offers both standard and custom AOTFs. AOTFs are used widely in numerous optical systems and applications, especially in industrial or process control near-infrared (NIR) spectroscopy applications.


KEY FEATURES

  • All Rugged, Solid State
  • No Moving Parts – Immune to vibrations
  • Use with Multiple Laser Lines Simultaneously
  • Wide Spectral Wavelength Range
  • Fast Switching Speed
  • Low Sensitivity to Input Angle
  • High Optical Throughput
  • Auto Calibration between Each Measurement
  • Custom Configurations Available
  • Ideal for Real-Time NIR

APPLICATIONS

Scientific:

  • Spectrophotometry Monochromation
  • Florescence Analysis, Transmission
  • Laser Displays

Industrial:

  • Process Control

Biomedical:

  • Confocal Microscopy
  • Polarimetric Hyperspectral Imagery (the AOTF is inserted in the imagery system)
  • Other OEM Applications

specifications

Model # Spectral Range
(nm)
Drive Freq.
(MHz)
Optical Aperture
(mm)
Spectral Resolution
(nm)
Acceptance Angle
(deg.)
DE
(%)
QZAF-.20-.40 200-400 90-250 2.0 x 10.0 1.2-7.0 4.4-7.2 20-30
TEAF_-.36-.52_ 360-520 100-190

5.0 x 5.0

Available
Standard
Optical
Apertures
Includes:

3.0 x 3.0
5.0 x 5.0
7.0 x 7.0
10.0 X 10.0

Other
Optical
Apertures
Are
Available
Upon
Request.

S H S H 70
0.8-4.0 0.5-2.2 4.18-4.36 2.85-3.4
TEAF_-.40-.65_ 400-650 220-110 1.0-5.1 0.5-2.5 4.8-6.2 3.4-4.4 70-90
TEAF_-.45-.70_ 450-700 180-100 1.7-6.2 0.8-3.2 5.2-6.5 3.6-5.0 70-90
TEAF_-.55-1.0_ 550-1000 155-70 1.5-8.3 0.9-5.0 4.3-5.9 3.2-4.5 70-90
TEAF_-.40-1.0-2CH* 400-1000 220-70 1.2-8.3 0.7-5.0 3.8-5.9 2.8-4.6 50-60
TEAF_-.80-1.6_ 800-1600 130-60 S H EH S H 70-90
4-10 3-8 2-6 5.39-5.71 4.96-7.2
TEAF_-1.2-2.0_ 1200-2000 90-50 6-16 6-12 4-9 6.78-8.56 5.3-7.5 25-35
TEAF_-1.5-3.0_ 1500-3000 68-34 9-37 8-29 6-22 7.4-9.26 6.6-7.95 30
TEAF_-2.4-4.5_ 2400-4500 40-20 25-83 18-65 14-48 8.43-11.38 7.3-9.72 40
TEAF_-0.8-1.6-UH 800-1600 190-90 S H S H 60
2-6 2.0-4.5 9.9-15.2 8.65-13.3
TEAF_-1.2-1.7-UH 1200-1700 120-80 5-7 3.0-5.0 11.9-14.68 9.47-12.88 50
TEAF_-1.5-2.4-UH 1500-2400 90-55 6-14 4.5-11.0 13.4-16.95 11.9-15.2 40
TEAF_-2.4-3.2-UH 2400-3200 55-40 14-25 11.0-17.0 16.95-19.8 15.2-17.29 35
TEAF_-3.2-4.5-UH 3200-4500 45-30 24-48 17.5-37.0 19.8-23.44 17.29-20.9 30

* Available in low or standard resolution.

Brimrose uses a crystal of Tellurium Dioxide (TeO2) AOTF that operates in the NIR region in a so-called non-collinear configuration - the acoustic and optical waves propagate at quite different angles through the crystal.

Material:  TE – Tellerium Dioxide (350-5000 nm)   QZ – Quartz (SiO2)

Options: 

  • S – Standard Resolution
  • H – High Resolution
  • EX – Extra high Resolution
  • UH – Ultra high Resolution

Complete the form to receive a quote for one of our standard models or get a custom quote.

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