Optical filters & sensors

The tunable filter is used in low cost spectral measurement tools. The MEMS fiber optic accelerometer detects directional acceleration.

Image - Optical filters & sensors

Sercalo MEMS Tunable Filters (TF) are designed for precise wavelength selection, particularly in ITU O, C, and L telecommunication bands (e.g., C-band: 1528-1569 nm). They use a grating and a tilting MEMS mirror to select a specific wavelength, offering narrow bandwidths (as low as 0.3 nm FWHM) and fast switching times (below 50 ms). Applications include reconfigurable add/drop multiplexers, optical sensor interrogators, and low-cost spectrometers.

The Sercalo MEMS Fiber Optic Accelerometer (FOA) is a passive sensor that measures acceleration up to 30 G. Its sensor head  is insensitive to magnetic and electrostatic fields. The sensing mechanism relies on a seismic mirror that deflects light proportional to the acceleration. Crucially, the sensor head can be placed in harsh environments while the measuring electronics remain separate, connected only by optical fibers.

Sercalo’s optical MEMS components are entirely made in
house.