Free-space AO Modulator (Acousto-Optic Modulator)

M200-4B/E-LD4

• High intensity RGB modulation

• 200MHz drive frequency

• 10ns rise-time

Description

An acousto-optic modulator for use with high intensity RGB lasers, ideally suited for laser display and reprographic applications.

Manufactured in fused silica and with our superior high damage threshold anti-reflection coatings this modulator provides extremely fast digital or analogue switching in the RGB range, coupled with an ultra-high extinction ratio and optimised throughput.

Specification

Interaction Material: Fused Silica

Acoustic Mode: Isotropic, compressional

Wavelength: RGB

Polarisation: Linear, vertical to base

Laser Power Maximum: > 100W

Anti-Reflection Coating: < 0.5% per surface

Transmission: > 97%

Extinction Ratio (1st order on/off): > 55dB

Frequency: 200MHz

Active Aperture: 0.20mm

Input Impedance: 50Ω

Maximum RF Power: 6W

Operating Temperature: +10 to +60°C

Storage Temperature: -15 to +70°C

Wavelength:                           446nm         532nm         628nm

Beam Diameter:                      90μm           90μm           120μm

Rise-Time (10-90%):              10ns            10ns             13.5ns

Modulation Bandwidth (3dB):   50MHz        50MHz         37MHz

Diffracted Beam Ellipticity:      16%             21%             17%

Separation Angle:                    15mrad        18mrad        21mrad

Diffraction Efficiency:              > 80%          > 80%          > 80%

RF Power:                               3W               4W               5.5W

Driver Selection

N31200-6DM, N31200-6AM