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Acousto-Optic Multi-Channel Modulators

Product information "Acousto-Optic Multi-Channel Modulators"

Type UV, Visible; Wavelength 350-850 nm; Number of Channels 4-24; Rise / Fall Time 7-23 ns; Active Aperture 0.18-0.5 mm; Operating Frequency 125-350 MHz;

Acousto-optic multi-channel modulators (AOMC) allow multiple beams to be modulated or deflected independently by integrating an array of transducers with a single acousto-optic crystal. The AO multi-channel modulators manufactured by Gooch & Housego (G&H) feature reliable operation and high performance with minimized crosstalk thanks to proprietary optical and electrical designs to allow concurrent operation of up to 48 channels for modulation, and up to 8 channels for beam deflection.


Multi-channel modulators are most often used for high speed applications like micromachining and direct-write lithography, as each beam can be modulated independently. They are also used to increase throughput when writing large media by writing multiple beams at the same time. A typical multi-channel modulator has parallel beams as input, each operated on by a different transducer to modulate its intensity. Available models have 2 to 48 channels for UV through NIR wavelengths, with rise times as short as 7 ns for apertures < 1 mm. Multi-channel RF drivers are available with analog or digital modulation.

High laser damage threshold is achieved using low-scatter materials inspected to rigorous quality standards. We draw our own tellurium oxide (TeO2) and source high quality fused silica and crystalline quartz to ensure low insertion loss and excellent optical power handling.

Applications: Marking; Material Processing; Micromachining; Printing

Series Type Wavelength Number of Channels Rise / Fall Time Active Aperture Operating Frequency Optical Material Downloads
AOMC 3160-8 UV 364 nm 8 21 ns 0.18 mm 160 MHz Fused Silica Datasheet
AOMC 125-24 UV 350 - 365 nm 24 23 ns 0.5 mm 125 MHz Crystalline Quartz Datasheet
AOMC 220-5 UV 413 nm 5 16 ns 0.24 mm 220 MHz Crystalline Quartz Datasheet
AOMC 220-4 UV 350 - 365 nm 4 16 ns 0.24 mm 190 - 250 MHz Crystalline Quartz Datasheet
AOMC 300-5 UV 413 nm 5 10 ns 0.2 mm 300 MHz Crystalline Quartz Datasheet
AOMC 3350-6 Visible 350 - 850 nm 6 7 ns 0.33 mm 350 MHz Tellurium Dioxide Datasheet
Manufacturer "Gooch & Housego"
Gooch & Housego is a manufacturer of precision optical components and subsystems, enabling a number of key technologies such as crystal growth, electro optics, fiber optics, optical coatings, acousto optics and RF electronics. Formed from leading established companies in these complementary technologies, Gooch & Housego is a leading supplier to the world´s major optical and laser system manufacturers. Target markets include industrial laser, biomedical, defense and metrology.
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Chip Style; Input Signal Current 0.8-80 µA; Typ. Locking Accuracy 1°; Bias Voltage -10-10 V; Pilot Tone Frequency 9.8 kHz; Dimensions 45.7x20.3x12.7 mm OZ Optics’ MBC-CHIP chip-size modulator bias controller is a single-function, chip-size, OEM version of the MBC family of modulator bias controllers. It is designed especially for digital system applications. The small size of the board makes it easy to be integrated into the system. This chip-size MBC is designed to lock the working point of the modulator at positive slope quadrature (quad+), negative slope quadrature (quad-), null or peak points of its characteristic curve respectively. The locking mode and slope has to be specified before ordering. The Chip size MBC is designed to use the built-in PD of the modulator but the user may also use an external PD by soldering it to the MBC-Chip. Key Features: Single-function Unit With Q+/Q-, Null/Peak Options Low Profile: 45.7 x 20.3 x 12.7 mm Access for External Photodetector Input Signal Current: 0.8 µA to 80 µA Locking Accuracy: 1° Typ., 3° Max. DC Bias Voltage: -10 V to +10 V Pilot Tone Frequency: 9.8 kHz Pilot Tone Amplitude Range: 0 mV to 300 mV VC DC Voltage: -10 V to +10 V Applications: Modulator Bias Control in Digital Systems; Locking the Modulator’s Working Point at Positive Slope Quadrature (quad+), Negative Slope Quadrature (quad-), Null or Peak Points of its Characteristic Curve
Product number: SW11940
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