download symbol WHITE PAPERS

download symbol2016 - Simultaneous blood flow and blood oxygenation measurements using a combination of diffuse speckle contrast analysis and near-infrared spectroscopy

download symbol2014 - Towards telecommunication payloads with photonic technologies

download symbol2013 - Trimodal detection of early childhood caries using laser light scanning and fluorescence spectroscopy: clinical prototype

download symbol2013 - A fiber-optic system for dual-modality photoacoustic microscopy and confocal fluorescence microscopy using miniature components

download symbol2012 - Miniaturized all-optical photoacoustic microscopy based on microelectromechanical systems mirror scanning

download symbol2011 - Effects of Radiation on MEMS

download symbol2011 - Digital optical tomography system for dynamic breast imaging

download symbol2006 - A flexible telecom satellite repeater based on microwave photonic technologies


The product you are looking for is not on this list? Do you have a special requirement for any of our optical MEMS components? Do not hesitate, get in touch with us !

All fields marked with * are required.

Powered by BreezingForms


The Sercalo MEMS Switches SN series are opto-mechanical switches for the most demanding applications in fiber optic sensor systems and instrumentation.

The switch is available in 1x1, 1x2, 2x2 and 1x4 variants. The switch mechanism is available in either latching or non latching variants and has a very fast response time below 1 ms and below 1.5 dB insertion loss. The single mode switch is available for a number of specialties fibers covering design wavelengths such as 488 nm, 515 nm, 633 nm, 680 nm, 780 nm, 830 nm, 980 nm and 1064 nm. The 1x2 and 2x2 variants can also be made with polarisation maintaining PANDA fibers.

The miniature package withstands rugged environments and is well suited for direct mounting on printed circuit boards. The switch is qualified according to Telcordia GR 1221.


The Sercalo MEMS switches are composed of an optical subsystem and an electrical driver interface. The optical switching function is realized by a silicon MEMS chip. In the latching SL variants, a bistable suspension mechanism keeps the last selected state in power off. In the non-latching SN variants, the switch returns into the bar state when electrical power is removed.

To operate the switch 5V and 0V are applied on the supply pins, which are used by the internal DC-DC converter to supply a high voltage for the actuator control. CMOS or TTL logic levels on the control pins switch the high voltage on the electrostatic actuator. To set the switch state in the latching variant, pin 2 respectively pin 3 are set to logic high (5V) for 10 ms and the corresponding switch state is selected. At rest pins 3 and 4 should be pulled to 0 V and must not be floating.

In the non-latching variant only pin 2 is used to set the state of the switch. To set the cross-state pin 3 must be at logic high. When pin 3 goes to logic low, or at power off, the switch returns into the bar state.

Description SN/SL switches speciality fibers