Structured Manufacturing Data (2026)

Modulation Crystal

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Modulation Crystal used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Modulation Crystal is characterized by the integration of Electrode and Anti-Reflection Coating. In industrial production environments, manufacturers listed on CNFX commonly emphasize Lithium Niobate (LiNbO3) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A specialized crystal component used to modulate electromagnetic beams by altering their phase, frequency, or amplitude.

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Product Specifications

Technical details and manufacturing context for Modulation Crystal

Definition
A modulation crystal is a critical optical or electro-optical component within a Beam Modulator system. Its primary function is to interact with an incoming electromagnetic beam (often laser light) and precisely control one or more of its properties—such as phase, frequency, polarization, or intensity—based on an applied electrical signal or inherent material properties. This enables the encoding of information onto the beam or the manipulation of its characteristics for applications in telecommunications, laser processing, sensing, and scientific instrumentation.
Working Principle
The crystal's operation relies on its electro-optic, acousto-optic, or magneto-optic properties. When an external control signal (voltage, acoustic wave, or magnetic field) is applied, it induces changes in the crystal's refractive index or birefringence. As the beam passes through the crystal, these changes alter the beam's optical path length, polarization state, or diffraction, thereby modulating its output characteristics in a controlled manner proportional to the input signal.
Common Materials
Lithium Niobate (LiNbO3), Potassium Dideuterium Phosphate (KD*P), Beta Barium Borate (BBO)
Technical Parameters
  • Typical aperture dimensions (e.g., 5x5mm, 10x10mm) defining the clear optical path for the beam. (mm) Standard Spec
Components / BOM
  • Electrode
    Applies the controlling voltage or signal across the crystal to induce the electro-optic effect.
    Material: Gold-plated metal or conductive coating
  • Anti-Reflection Coating Part
    Minimizes optical reflection losses at the crystal surfaces to maximize transmission efficiency.
    Material: Dielectric thin films (e.g., MgF2, SiO2)
  • Crystal Mount Part
    Securely holds and aligns the crystal within the modulator housing, often providing thermal management.
    Material: Aluminum or copper alloy

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Modulation Crystal.

EO Crystal lithium niobate modulation crystal electro-optic phase modulator crystal KD*P crystal for laser modulation BBO crystal amplitude modulator optical modulation crystal components

Applied To / Applications

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

Beam Modulator
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 2 bar
other spec: Wavelength Range: 400-1600 nm, Modulation Bandwidth: Up to 10 GHz
temperature: -40°C to +85°C
Media Compatibility
✓ Laser Systems ✓ Optical Communication Networks ✓ Medical Imaging Equipment
Unsuitable: High-Vibration Industrial Machinery
Sizing Data Required
  • Operating Wavelength (nm)
  • Modulation Frequency Requirement (Hz)
  • Beam Diameter (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Frequency Drift
Cause: Thermal cycling causing crystal lattice stress, aging of piezoelectric materials, or contamination altering resonant properties
Output Signal Degradation
Cause: Electrode delamination due to thermal expansion mismatch, moisture ingress compromising electrical contacts, or mechanical vibration-induced micro-cracking
Maintenance Indicators
  • Audible frequency instability or intermittent signal dropout in connected systems
  • Visible discoloration, corrosion, or physical deformation of the crystal housing
Engineering Tips
  • Implement controlled thermal management with gradual temperature transitions to minimize thermal shock and maintain stable operating conditions
  • Establish vibration isolation mounting and periodic cleaning protocols using approved solvents to prevent contamination buildup

Compliance & Manufacturing Standards

Reference Standards
ISO 10110-5:2015 (Optics and photonics - Preparation of drawings for optical elements and systems - Part 5: Surface form tolerances) ASTM E131-10 (Standard Terminology Relating to Molecular Spectroscopy) CE marking for electromagnetic compatibility (EMC) under Directive 2014/30/EU
Manufacturing Precision
  • Surface flatness: λ/10 at 632.8 nm
  • Parallelism of faces: ≤ 30 arcseconds
Quality Inspection
  • Interferometric surface flatness test
  • Spectroscopic purity analysis for crystal defects

Factories Producing Modulation Crystal

Manufacturer profiles with relevant production capability in China

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

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What are the primary applications of modulation crystals in electronics manufacturing?

Modulation crystals are essential in telecommunications, laser systems, and optical computing for controlling signal properties in fiber optics, laser modulation, and precision measurement devices.

How do different crystal materials like LiNbO3 and BBO affect modulation performance?

LiNbO3 offers excellent electro-optic properties for high-speed modulation, while BBO provides superior UV transmission and nonlinear optical effects. Material selection depends on wavelength, modulation type, and environmental stability requirements.

What factors should be considered when integrating modulation crystals into optical systems?

Key considerations include crystal orientation, anti-reflection coating specifications, thermal management, electrode configuration, and compatibility with mounting hardware to ensure optimal modulation efficiency and system reliability.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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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