Overview of Acousto-Optic Tunable Filters (AOTF)
CASTECH's Acousto-Optic Tunable Filters (AOTF) are cutting-edge optical bandpass filters that offer fast, electronic, and random-access wavelength selection. Designed using TeO2 slow shear waves, these filters provide exceptional performance across a wide wavelength range of 400–1450 nm with resolution as fine as 3 nm. The non-collinear structure and diffraction mechanism ensure high efficiency in applications requiring precise wavelength tuning.

Key Features:

• Wide Operating Wavelength Range: 400–1450 nm
• High Resolution: As low as 3 nm
• Large Effective Aperture: Up to 10 mm
• Advanced Non-Collinear Structure: Ensures precise diffraction and wavelength selection
• Randomly Polarized Light: Supports diffracting two orthogonal polarizations for optimized performance
• Fiber-Coupled Option: Easy integration into fiber-optic systems
• Customizable: Available in a variety of configurations to suit specific applications

Applications:

• Spectral Polarization: Ideal for applications requiring precise control of light polarization
• Hyperspectral Imaging: Provides fine-tuned wavelength selection for high-resolution imaging
• Wavelength Selection: Selects specific wavelengths in a broad spectrum for advanced optical analysis
• Optical Communication: Ensures precise wavelength management in optical networks
• Laser Wavelength Tuning: Allows for dynamic adjustment of laser output wavelength

Optimize Your Performance:
For optimal results, CASTECH recommends pairing the AOTF with our dedicated RF drivers, available in both fixed and variable-frequency series, to enhance performance and ensure the best match with your application requirements. CASTECH’s AOTF solutions are fully manufactured in-house and can be customized to meet specific customer needs.