The optical MEMS advantage

The improvement of the key microphone parameters for MEMS microphones has today reached a ceiling. A new transducer technology is required to make a significant leap in performance – optical MEMS!

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Ultra-low self-noise readout principle

sensiBel’s patented optical MEMS technology is based on the optical phenomena of interference and diffraction, both of which are due to the wave character of light. In simple terms, the microphone uses a tiny energy-efficient laser in combination with a miniaturised and integrated interferometer to measure extremely accurately the motion of a silicon-based membrane. The entire optical system is in fact smaller than a cubic millimeter! This ultra-low self-noise readout principle gives the high SNR and AOP characteristic, yet in a small MEMS package with low power consumption.

Additional benefits the optical MEMS transducer system are enhanced environmental robustness e.g. against dust, and significantly reduced likelihood for stiction (the membrane stuck to the backplate).

Small size. Extremely capable.

True studio-quality audio in a small MEMS package with optical technology


sensiBel gives you crystal clear recordings

Crystal clear recordings

True studio-quality audio recordings

Super directivity beam-forming solutions

Noise-free ANC and ambient mode headphones

sensiBel gives distortion proof in high-noise environments

Distortion proof in high-noise environments

Capture very loud sounds with no clipping

High dynamic range

sensiBel gives you flexible platform solution

Flexible platform solution

Selection of digital interfaces

System cost optimized

Smart configurability