High-Performance MEMS Mirrors

July 3, 2025
2 min read

MEMS Mirrors

Avantier’s MEMS mirrors (Micro-Electro-Mechanical Systems mirrors) are compact, fast, and precise optical MEMS devices designed for dynamic beam steering, scanning, and light modulation. Using micro-scale actuation mechanisms, MEMS mirrors can tilt or rotate at high speeds with low power consumption. These miniature mirrors are ideal for next-generation photonic systems requiring agile and accurate optical control.

Engineered with advanced semiconductor processing, our MEMS mirrors offer excellent reliability and performance for a wide range of optical applications.

Key Applications

  • LiDAR Systems for autonomous vehicles and robotics – real-time 3D environment scanning
  • Optical Communication Networks – signal routing, switching, and alignment
  • AR/VR Display Technology – near-eye projection using MEMS beam steering mirrors
  • Biomedical Imaging – fast scanning in OCT (optical coherence tomography) and laser-based diagnostics
  • Laser Beam Projection – compact MEMS-based image projection for mobile and industrial systems

Structure & Operating Principle

A typical MEMS scanning mirror includes:

  • Mirror Surface: Highly reflective silicon or metal-coated element
  • Actuation Mechanism: Electrostatic (standard), electromagnetic, or piezoelectric options
  • Torsion Springs: Provide controlled angular deflection and fast response
  • Support Substrate: Houses the mechanical structure and interface circuitry 

How MEMS Mirrors Work

By applying voltage or current to micro-actuators, the mirror tilts or rotates along one or two axes. This allows for high-speed deflection of incident laser beams, enabling precise scanning or tracking. Our MEMS mirrors support angular ranges from ±5° to ±25° with resonant frequencies up to 30 kHz, ensuring rapid response and high positional accuracy. To read the entire article, visit Avantier.

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