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Acousto-Optic Polychromatic Modulators Low Side Lobes Versions

Acousto-Optic Polychromatic Modulators 

Low Side Lobes Versions

The AOTFnC is a special acousto-optic tunable filter 

which uses the anisotropic interaction inside a tellurium

dioxide crystal to control independently or simultaneously

different lines from an incoming UV or

VISIBLE laser light (White laser, Ar+, Kr+, HeNe, DPSS, Dye...).

Up to 8 distinct lines can be mixed and separately modulated 

in order to generate different colorimetric

patterns.

The specific crystal cut of the AOTF.nC produces good

diffraction efficiency (> 90%), narrow resolution (1-2

nm), a low cross-talk between lines, and high extinction ratio.

The large separation angle between 0 and 1st orders, 

as well as the excellent output chromatic colinearity

(<0.2 to <0.3 mrd ) make this AOTF a powerful tool for 

free space or fiber pigtailed applications.

Its associated thermal stabilisation maintains stable 

diffraction efficiency and reduces dramatically beam

drift with single mode fiber pigtailing. This is a major 

advantage for high sensitivity applications.