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Acousto-Optic Tunable Filters
- Acousto-optic tunable filters are used to select and ransmit a specific wavelength from a broadband or a multi line laser source dynamically. The transmitted wavelength of the narrow passband changes as the RF drive frequency changes.
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Acousto-optic tunable filters are used to select and ransmit a specific wavelength from a broadband or a multi line laser source dynamically. The transmitted wavelength of the narrow passband changes as the RF drive frequency changes.
Compared with other types of filters, the primary advantage of acousto-optic tunable filters is that the tuning speed is fast. Wavelength tuning can be accomplished in tens of microseconds.
CASTECH's acousto-optic tunable filters are fabricated using high quality TeO 2 crystals grown in-house . The products are suitable for a wide variety of wavelengths .
Applications
● Laser wavelength tuning
● Wavelength selection ● Laser-microscope ● Laser imaging
● Spectroscopy
| Product Number | Wavelength (r) |
Aperture (a) |
Material (m) |
Mode （t） |
RF Connector (c) |
Housing (h) |
| CAOMM-f-a-n-mt -w-c-h | 640~1100nm | ≤2.5 mm | TE (TeO2) |
S (Shear) | SMA ... |
A18 |
| Product Number* |
Wavelength | Active Aperture |
Frequency | Optical Material |
Transmitt ance |
Diffraction Efficiency |
| CATF-640/1100-025-TES-AF-A18 | 640~1100 nm | 2.5 mm | 48~86 MHz | Tellurium Dioxide |
>93% | ≥80% @2W |
| *Customized products are available. | ||||||
Dimensions(mm):
Fuzhou, Fujian, China
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