Free-space AO Modulator (Acousto-Optic Modulator)

M350-2x

• 488nm, 532nm and 633nm

• 350MHz drive frequency

• 5ns rise-time

Description

A high bandwidth acousto-optic modulator, for use in the visible RGB spectral region. Using specially selected top-grade tellurium dioxide and with our renowned quality manufacturing processes, this modulator provides fast switching capability at low RF drive powers.

Available in three models, one each for red, green and blue, high efficiency coupled with excellent transmitted beam quality make it particularly suited to electronic pre-press applications.

Specification

Interaction Material: Tellurium Dioxide

Acoustic Mode: Isotropic, compressional

Wavelength M350-2B: 488nm, < 20mW

M350-2C: 532nm, < 20mW

M350-2E: 633nm

Anti-Reflection Coating: < 0.2% per surface

Transmission: > 97%

Polarisation: Linear, vertical to base

Frequency: 350MHz

VSWR: < 1.2:1 (50Ω input impedance)

Active Aperture: 0.15mm

Separation Angle: 40 to 52mrad, wavelength dependant

RF Power: < 2W

Performance with a 30μm diameter, linearly polarised beam:

Rise-Time / Fall-Time: 5ns

Modulation Bandwidth: 100MHz

Diffracted Beam Ellipticity: < 15%

Diffraction Efficiency: > 80%

Driver Selection

Analogue / Digital Modulation: A310