Acousto-Optic Multi-Channel Modulators

Key Features 

  • Allows simultaneous modulation of up to 10 optical channels.
  • Reduces crosstalk and enhances linear modulation performance.
  • Utilizes high-quality materials such as fused quartz, crystalline quartz, and Tellurium Dioxide for durability and efficiency.
  • Provides low insertion loss (<3 dB) and high diffraction efficiency (>70%).
  • Supports operation frequencies up to 200 MHz, ensuring high-speed modulation.

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General Description

Acousto-Optic Multi-Channel Modulators (AOMM) are advanced devices designed to modulate or deflect multiple optical beams simultaneously. By integrating transducer arrays into a single acousto-optic crystal, AOMMs significantly increase the number of modulated beams, reduce scanning rates, and lower modulation bandwidth, improving overall linearity and efficiency.

Compared to single-channel AOMs, AOMMs provide independent control of multiple beams or collimated light lines, making them ideal for demanding applications such as laser color printers, multi-channel acousto-optic spectrometers, optical digital computers, and video infrared image processing systems.

POC’s AOMMs are constructed using low-scatter fused quartz, crystalline quartz, and Tellurium Dioxide to ensure low insertion loss, high diffraction efficiency, and robustness under high-power conditions. These modulators support up to 10 channels and operate at frequencies up to 200 MHz, minimizing acoustic and electrical crosstalk while delivering precise performance.

General Applications and Examples

  1. Laser Color Printing
    AOMMs are integral to high-resolution laser color printers, providing simultaneous modulation of multiple beams to enable efficient and precise color printing processes.
  2. Spectroscopy and Imaging
    Multi-channel modulation enhances the performance of spectrometers and dynamic infrared imaging systems, enabling faster data acquisition and higher-quality image processing.
  3. 2D Information Processing
    AOMMs are used in optical computing systems to modulate multiple light beams for parallel data processing, improving computational speed and accuracy.
  4. Material Processing
    AOMMs enable simultaneous modulation of multiple laser beams for high-speed micromachining, marking, and welding applications, enhancing productivity and precision.

Our Standard Products and Model Numbers

Model Number

Center Frequency (MHz)

Aperture (mm)

Number of Channels

Material

Mode

Wavelength (nm)

RF Connector

Housing

CAOMM-f-a-mt-w-cn-h

40.68

1

5

CQ / TE

C (Compression)

266

SMA-F

B23

Typical Specifications

Wavelength (nm)

Aperture (mm)

Operating Frequency (MHz)

Number of Channels

Channel Crosstalk (dB)

Diffraction Efficiency (%)

370

0.2–1

100

5

>20

≥70

355

0.2–1

200

10

>20

≥70

Housing Dimensions (mm)

  • B23: 65 x 45 x 35 mm, optimized for compact multi-channel setups with reduced footprint.
  • B36: 98 x 72 x 36 mm, ideal for systems requiring larger configurations and higher channel counts.

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