Acousto optic Adjustable Filter (AOTF) (G&H)

Details

Product Name: Sound and Light Adjustable Filter(AOTF)

Product Introduction:

Acousto-optic tunable filter(AOTF)Used for quickly and dynamically selecting a specific wavelength broadband or multi line laser source. Different application RF frequencies,Changes in transmission wavelength,Optimize the wavelength or image of the beam to tens of microseconds or less.

Acousto-optic tunable filter(AOTF)

Acousto-optic tunable filter(AOTF)Used for quickly and dynamically selecting a specific wavelength broadband or multi line laser source. Different application RF frequencies,Changes in transmission wavelength,Optimize the wavelength or image of the beam to tens of microseconds or less.

We offer a wide range ofAOTFsFrom ultraviolet to mid infrared wavelength range,Resolution bandwidth less than1in the sea. We also offer options such as large aperture imaging filtering and sideband suppression.

Acousto-optic tunable filter(AOTF),Application of RF driving frequency in acousto-optic materials such as tellurium dioxide(TeO2)To create a diffraction grating,The refractive index of a crystal varies with position. Coherent beam passing through crystal,Constructive narrowband interference with only frequency(That is.,Meet the phase matching condition)Effective exit of crystal and transmissionundiffractedThe beam is at a different angle.

The selective diffraction wavelength of light allows crystals to serve as tunable bandpass filters. With different RF driving frequencies,The change in the center wavelength of a narrow passband. The main advantage of acousto-optic tunable filters is that they are faster than other wavelength selective devices. Wavelength tuning can achieve tens of microseconds.

The factors affecting the selection of acousto-optic adjustable filters include:

Wavelength range

Resolution bandwidth (reported as the spectral FWHM for the transmitted beam)

Beam size or active aperture needed

Degree of beam collimation

Desired tuning speed

Polarization (we recommend polarized light for best efficiency)

Most applicationsAOTFsInvolving filtering light from broadband sources,Like a super continuous fiber laser,Or choose a wavelength to combine multiple laser wavelengths of the beam.

commonly usedAOTFsCompared to aperture smaller than6millimeter,A resolution bandwidth of less than tens of nanometers for near-infrared spectral wavelengths and less than ten nautical miles for visible light wavelengths. We also provided onequasi-collinear AOTFcan provide< 1If operating with highly parallel light, the nanometer resolution bandwidth can be reduced.

AOTFslarge aperture(> 6millimeter)Spectral imaging is a powerful tool,Quickly and effectively scan the entire image at wavelength. This is for high-speed applications of hyperspectral imaging,confocal microscope,Online process control. ofAOTFssignificantly increase,A very expensive aperture,But they provide unparalleled speed and time sensitive multispectral measurements in industry and biotechnology,Near real-time video spectral imaging.

We produce and use high-quality acousto-optic adjustable filtersTeO2Internal growth of crystals,Made with polishing and strict standards. We offer wavelengths from350nmto4.4µmIn various aperture and resolution bandwidths.

We can filter images25millimeter,Achieve extremely low driving power requirements,Or design oneAOTFMultiple discrete wavelength selection and transmission.

Acousto optic tunable filters typically exhibit resolution bandwidth leakage of interest to light,usually10 - 20 dBBelow peak power. This is due toAOTFThe response function itself,But using our patented technology can minimize it. We provide sideband suppression in several models,Reduced the size of the side blades20 dBCompared to the main beam.

weAOTFThe lighting product line includes application specific solutions or selection of excitation wavelengths,And multispectral and hyperspectral imaging. Best Performance,We recommend matching RF drivers,Including the latest digital frequency synthesizer(DFS)Drive technology and random access wavelength control.

Indicator specifications: