Acousto-optic variable filter Near infrared to infrared (NIR – IR) tunable filter
Japan Laser Co., Ltd.
About This Product
■Electrically controlled spectral band filter using acousto-optic device
・Supports wavelength range from VIS to IR and mid-infrared
・Wide acceptance angle & large aperture
・Crystal orientation, incidence angle, and acoustic generation angle are carefully designed to achieve a precise bandpass.
Acousto-optic diffraction requires momentum matching between light and sound waves (acoustic waves) within a crystal. Isomet's AO laser beam modulators are designed for maximum momentum consistency when the input beam is aligned to the Bragg angle.
On the other hand, unlike modulators, AO tunable filter (AOTF) applications often use incoherent and poorly collimated light, requiring large apertures with wide acceptance angles. To meet these demands, Isomet uses the nonlinearity of birefringent crystals in AOTF.
In order to correspond to exact RF frequencies, the crystal orientation and acoustic generation angle are set so that diffraction occurs in a very narrow wavelength band. In use, it is necessary to apply multiple synchronous frequencies to the AOTF without causing excessive cross-modulation. This allows you to control wavelength mixing. The sound generation angle and the incident angle are designed in a correlated manner, and together they are factors that determine the characteristics of the AOTF.
■About acousto-optic products
All Isomet AO products have a piezoelectric transducer attached to one side of the crystalline material. When an RF drive signal is applied to this transducer, an acoustic traveling wave is generated within the crystal. Due to the photoelastic effect, the acoustic column produces a periodic change in the refractive index, much like the slit effect of a diffraction grating. Practical AO products are designed such that a high percentage of the incident laser light is diffracted into the first-order diffraction order, and these devices operate within the Bragg region.
We also support special applications such as Bragg cells, scohony modulators, and large aperture devices. Please contact us.
*Other model numbers are available.
-
Product
Acousto-optic variable filter Near infrared to infrared (NIR – IR) tunable filter
-
Handling Company
Japan Laser Co., Ltd.
-
Categories
10 Models of Acousto-optic variable filter Near infrared to infrared (NIR – IR) tunable filter
Items marked with have different values depending on the model number.
Click on the part number for more information about each product
| Product Image | Part Number | Price (excluding tax) | Acceptance angle (Deg.) | Drive frequency (MHz) | Effective aperture (mm) | Optical bandwidth (nm) | Wavelength range (µm) |
|---|---|---|---|---|---|---|---|
|
|
AOTF920-14-5 (A) |
Available upon quote | 3.4 – 4.8 | 140 – 70 | 5×5 | 2 – 10 | 0.7-1.3um |
|
|
AOTF920-14-5 (B) |
Available upon quote | 4.5 – 6.0 | 75 – 40 | 5×5 | 6 – 20 | 1.2-2um |
|
|
AOTF920-14-5 (C) |
Available upon quote | 5.0 – 6.3 | 65 – 30 | 5×5 | 10 – 30 | 1.5-2.5um |
|
|
AOTF920-20-5 (A) |
Available upon quote | 2.6 – 3.8 | 140 – 70 | 5×5 | 1.5 – 7 | 0.7-1.3um |
|
|
OTF920-20-5 (B) |
Available upon quote | 3.4 – 4.8 | 75 – 40 | 5×5 | 4 – 16 | 1.2-2um |
|
|
AOTF920-20-5 (C) |
Available upon quote | 4.0 – 5.3 | 65 – 30 | 5×5 | 7 – 20 | 1.5-2.5um |
|
|
AOTF920-24-5 (A) |
Available upon quote | 3.0 – 4.1 | 140 – 70 | 5×5 | 1 – 5 | 0.7-1.3um |
|
|
AOTF920-24-5 (B) |
Available upon quote | 3.8 – 5.0 | 75 – 40 | 5×5 | 3 – 13 | 1.2-2um |
|
|
AOTF920-24-5 (C) |
Available upon quote | 4.0 – 5.6 | 65 – 30 | 5×5 | 5.5 – 16 | 1.5-2.5um |
|
|
AOTF1421-7 |
Available upon quote | ~9 | 39 – 24 | 7×7 | 12 – 32 | 2.5-4um |
Click on the part number for more information about each product
Customers who viewed this product also viewed
Other products of Japan Laser Co., Ltd.
View more products of Japan Laser Co., Ltd.
About Company Handling This Product
- Japan