Beam Steering Mirror

Product Specifications

Technical details and manufacturing context for Beam Steering Mirror

Definition

A beam steering mirror is a critical component within focusing optics systems that allows controlled angular deflection of laser beams or light paths. It enables precise alignment, scanning, or redirection of optical beams in applications such as laser processing, optical communications, microscopy, and measurement systems. The mirror's reflective surface is mounted on a mechanism that allows controlled rotation or tilting to change the beam's direction without significant power loss or distortion.

This directory entry covers beam steering mirrors as individual components, not complete steering assemblies. They are typically integrated into larger optical systems by the system integrator or end user. The mirror itself consists of a substrate with a reflective coating, designed to be mounted on actuators such as galvanometers, piezoelectric elements, or motorized stages. The substrate materials listed include fused silica, silicon carbide, beryllium, aluminum, and copper, each offering different trade-offs in thermal stability, weight, and stiffness. The coating type can be dielectric or metallic, with dielectric coatings generally providing higher damage thresholds for high-power lasers, while metallic coatings offer broadband reflectivity.

Key parameters to verify with the manufacturer include clear aperture (10–50 mm), surface flatness (λ/10–λ/20 at 632.8 nm per ISO 10110-5), surface quality (10-5 scratch-dig per ISO 10110-7), reflectivity (>99.5%), angular resolution (0.001–0.01°), repeatability (±0.005–±0.02°), scanning range (±5–±20°), operating temperature (0–50°C), storage temperature (-20–70°C), relative humidity (10–85% RH non-condensing), substrate material (BK7, fused silica, or Zerodur), coating type, weight (0.1–2.0 kg), and drive voltage (12–24 V DC for motorized versions). These values are typical ranges and must be confirmed for the specific model and application.

Always verify model-specific specifications and compliance with relevant standards directly with the legal manufacturer or supplier before procurement or integration.

Working Principle

The beam steering mirror operates by reflecting incident light at a controlled angle. When mounted on precision actuators (such as galvanometers, piezoelectric elements, or motorized stages), the mirror can be tilted or rotated to change the reflection angle. This allows the outgoing beam direction to be precisely controlled while maintaining beam quality and minimizing aberrations. The steering mechanism typically provides angular resolution in the microradian to milliradian range.

Common Materials

Fused silica, Silicon carbide, Beryllium, Aluminum, Copper

Technical Parameters

Parameter	Typical range	Notes & selection driver
Clear Aperture	10–50 mm	Determines beam size that can pass without vignetting.
Surface Flatness	λ/10–λ/20 at 632.8 nm	Higher precision reduces wavefront distortion.ISO 10110-5
Surface Quality	10-5 scratch-dig	Critical for high-power laser applications.ISO 10110-7
Reflectivity	>99.5 %	Coating dependent; high reflectivity minimizes loss.
Angular Resolution	0.001–0.01 °	Determines precision of beam steering.
Repeatability	±0.005–±0.02 °	Ensures consistent positioning over multiple cycles.
Scanning Range	±5–±20 °	Defines maximum angular deflection.
Operating Temperature	0–50 °C	Outside range may affect coating and mechanics.
Storage Temperature	-20–70 °C	Non-operational limits for safe storage.
Relative Humidity	10–85 % RH	Non-condensing; high humidity may cause coating degradation.
Substrate Material	BK7, fused silica, or Zerodur	Choice affects thermal stability and weight.
Coating Type	Dielectric or metallic	Dielectric for high damage threshold; metallic for broadband.
Weight	0.1–2.0 kg	Depends on size and material; affects mounting.
Drive Voltage	12–24 V DC	For motorized versions; must match controller.

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

Mirror Substrate Part
Provides structural support and thermal stability for the reflective coating

Material: Fused silica or low-expansion glass
Reflective Coating Part
Enhances reflectivity at specific wavelengths (dielectric or metallic)

Material: Dielectric multilayer or protected silver/gold
Actuator/Mount
Provides precise angular positioning and mechanical support

Material: Aluminum alloy or stainless steel
Position Sensor
Measures mirror angle for closed-loop control systems

Material: Optical encoder or capacitive sensor elements

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Beam Steering Mirror.

Applied To / Applications

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

Focusing Optics

View system integration details

Manufacturers of Beam Steering Mirror

Manufacturer profiles associated with Beam Steering Mirror.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 6 September 2026

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Frequently Asked Questions

What is the typical angular resolution of a beam steering mirror?

According to the directory data, the angular resolution is typically in the range of 0.001 to 0.01 degrees. However, the exact value depends on the actuator and control system used. Always verify the specific model's resolution with the manufacturer.

Which substrate materials are available for beam steering mirrors?

The directory lists fused silica, silicon carbide, beryllium, aluminum, and copper as possible substrate materials. Additionally, the parameter list includes BK7, fused silica, or Zerodur as substrate material options. The choice affects thermal stability and weight. Confirm the material for your application with the supplier.

What standards are referenced for surface quality and flatness?

Surface flatness is specified per ISO 10110-5, and surface quality per ISO 10110-7. These standards are used for verification. However, compliance must be confirmed with the manufacturer for the specific product.

Can beam steering mirrors be used in high-power laser applications?

Yes, but the reflectivity and coating type are critical. The directory lists reflectivity greater than 99.5% and coating types as dielectric or metallic. Dielectric coatings typically offer higher damage thresholds. Verify the damage threshold and suitability for your laser power with the manufacturer.

Data Basis

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

Preliminary Technical Classification

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pressure:	Atmospheric to 1.5 bar
other spec:	Angular range: ±20°, Beam diameter: 1-50 mm, Wavelength range: 400-1600 nm
temperature:	-20°C to +80°C

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards