Doctoral students of the Faculty of Physics of the University of Warsaw (UW) under the supervision of Dr Wojciech Wasilewski from the Center for Optical Quantum Technologies (QOT) constructed and tested an optical time telescope that collects signals over a period of several dozen microseconds.

The telescope allows the simultaneous reception and analysis of many closely lying optical frequency ranges (channels). The telescope constructed by PhD students allows to separate optical signals as close in frequency as FM FM radio stations (0.1MHz). Existing time telescopes obtain a million times lower resolution.

The new telescope exceeds the thousand-fold possibilities of optical spectrometers, which usually do not allow the reception of more than one channel at a time. Obtaining such a high resolution using conventional methods would require the use of optical fiber with a length close to the perimeter of Saturn’s orbit.