Editorial Technical Reference

Beam Modulator

This page explains how Beam Modulator is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A component that modulates laser beam properties such as intensity, phase, or polarization within a laser imaging system.

Product Specifications

Technical details and manufacturing context for Beam Modulator

Definition
The Beam Modulator is a critical component of the Laser Imaging Module responsible for precisely controlling and modifying the characteristics of the laser beam. It enables dynamic adjustment of beam parameters to achieve desired imaging effects, pattern generation, or material processing outcomes in applications like laser marking, engraving, lithography, or medical imaging systems. The modulator typically operates by applying electrical signals to electro-optic or acousto-optic crystals, liquid crystal arrays, or mechanical components (like galvanometer mirrors) to alter the laser beam's properties. This modulation can control intensity (amplitude modulation), phase (phase modulation), polarization state, or spatial distribution according to input control signals. The device is designed for use in the visible spectrum (400–700 nm) with a modulation bandwidth of 0–10 MHz, an extinction ratio greater than 1000:1, and insertion loss less than 1.5 dB. It features an aperture size of 5–10 mm, operates in temperatures from -10 to 50 °C, and can be stored from -40 to 85 °C. It requires a supply voltage of 12–24 V DC, consumes less than 5 W at maximum modulation rate, and communicates via RS-232 (optional USB). The unit weighs 0.5–1.5 kg and has dimensions of 100×60×40 mm (L×W×H). Materials on file include electro-optic crystals (e.g., lithium niobate), acousto-optic crystals (e.g., tellurium dioxide), liquid crystal arrays, silicon, and optical glass. These specifications are reference ranges; verify model-specific values with the legal manufacturer or supplier before procurement.
Working Principle
The modulator typically operates by applying electrical signals to electro-optic or acousto-optic crystals, liquid crystal arrays, or mechanical components (like galvanometer mirrors) to alter the laser beam's properties. This modulation can control intensity (amplitude modulation), phase (phase modulation), polarization state, or spatial distribution according to input control signals.
Common Materials
Electro-optic crystal (e.g., Lithium Niobate), Acousto-optic crystal (e.g., Tellurium Dioxide), Liquid crystal array, Silicon, Optical glass
Technical Parameters
ParameterTypical rangeNotes & selection driver
Wavelength Range400–700 nmVisible spectrum; other ranges on request
Modulation Bandwidth0–10 MHzHigher bandwidth available for custom designs
Extinction Ratio>1000:1Measured at center wavelength
Insertion Loss<1.5 dBIncludes connector losses
Aperture Size5–10 mmClear aperture; larger sizes available
Operating Temperature-10–50 °CNon-condensing humidity
Storage Temperature-40–85 °CLong-term storage
Supply Voltage12–24 V DCReverse polarity protected
Power Consumption<5 WAt maximum modulation rate
Control InterfaceRS-232Optional USB available
Weight0.5–1.5 kgDepends on configuration
Dimensions (L×W×H)100×60×40 mmTypical; custom sizes available

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Modulation Crystal
    Core element that interacts with the laser beam to alter its properties when subjected to electrical or acoustic signals
    Material: Electro-optic or acousto-optic crystal
  • Driver Circuit
    Provides the electrical signals required to control the modulation process
    Material: Semiconductor components, PCB
  • Optical Mount
    Securely holds and aligns the modulation element within the optical path
    Material: Aluminum alloy, stainless steel
  • Thermal Management System
    Maintains stable operating temperature to ensure consistent modulation performance
    Material: Copper heat sink, thermoelectric cooler
  • Liquid Crystal Arrays Optional
    Modulate the beam by liquid crystal cells instead of an electro-optic crystal.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Beam Modulator.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric pressure only (non-pressurized)
other spec: Max laser power: 10W, Wavelength range: 400-1100nm, Modulation frequency: up to 100kHz
temperature: 0°C to 50°C operating range
Media Compatibility
✓ Clean room air environments ✓ Inert gas purged enclosures ✓ Vacuum chamber integration
Unsuitable: High particulate or corrosive chemical environments
Sizing Data Required
  • Laser wavelength (nm)
  • Required modulation bandwidth (Hz)
  • Beam diameter (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Optical component degradation
Cause: Thermal stress from high-power operation causing lens/mirror coating failure or substrate micro-cracking
Electromechanical actuator failure
Cause: Wear in precision positioning mechanisms due to particulate contamination or lubrication breakdown
Maintenance Indicators
  • Beam profile distortion or intensity fluctuation beyond ±5% specification
  • Unusual high-frequency acoustic emissions from modulator housing during operation
Engineering Tips
  • Implement predictive maintenance using vibration analysis on drive components and thermal imaging on optical assemblies
  • Establish strict contamination control protocol with regular HEPA filtration maintenance and controlled access to modulator environment

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI Z136.1 - Safe Use of Lasers CE Marking - Directive 2014/35/EU (Low Voltage Directive)

Quoted from the published standard.

Manufacturing Precision
  • Beam alignment: +/- 0.5 mrad
  • Modulation frequency stability: +/- 0.1%
Quality Inspection
  • Laser power output verification test
  • Environmental stress screening (thermal cycling)

Manufacturers of Beam Modulator

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Shenzhen Box Optronics Technology Co., Ltd.
Shenzhen, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Optical Modulator”
View source page ↗ boxoptronics.com · checked 2026-09-14

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the typical wavelength range for the Beam Modulator?

The listed wavelength range is 400–700 nm (visible spectrum). Other ranges may be available on request, but you should confirm with the manufacturer for your specific application.

What control interfaces are available?

The standard control interface is RS-232, with an optional USB interface. Verify compatibility with your system's control electronics.

What are the operating temperature limits?

The operating temperature range is -10 to 50 °C (non-condensing humidity). Storage temperature is -40 to 85 °C. Ensure your environment stays within these limits.

Can the modulator handle high modulation bandwidths?

The standard modulation bandwidth is 0–10 MHz. Higher bandwidths may be available for custom designs, but you must consult the manufacturer for feasibility and specifications.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
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