---
title: "Acousto-Optic Polychromatic Modulators Low Side Lobes Versions"
url: "https://bmlaser.co.kr/acousto-optic-polychromatic-modulators-low-side-lobes-versions/"
description: "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 si"
image: "https://bmlaser.co.kr/wp-content/uploads/2021/04/141_shop1_159682.jpg"
type: "Article"
datePublished: "2021-04-13T14:39:42+00:00"
dateModified: "2021-04-15T15:01:09+00:00"
---

# 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 ( 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.