External triggering allows the user to synchronise wavelength measurement with external setup by means of TTL pulses. The light sensitive sensors are prepared for measurement up to a specifiable integration time after the arrival of the external trigger pulse. HighFinesse offers the WS Fast devices as compact device. The technology relies on Fizeau-based interferometers and the well approved principle of non-moving optics.
The optical unit consists of Fizeau-based interferometers which are read out by photodiode arrays. We achieve remarkable high accuracy and stability by using exclusive, non-moving optics. The sturdiness of our design has been proven even under extreme conditions such as freefall dropping experiments or in air-borne applications (LIDAR).
The absence of movable parts ensures advantages, such as high-speed measurements of pulsed and continuous lasers.