FOKUS frequency comb launches into space again, compares three clock frequencies

Source: Laser Focus World, March 2016

The Faserlaserbasierter Optischer Kammgenerator unter Schwerelosigkeit (FOKUS) instrument from Menlo Systems (Martinsried, Germany) traveled into space on January 23, 2016, aboard the German Space Agencies’ (DLR) TEXUS 53 sounding rocket for a second time since the April 2015 inaugural launch of a similar Menlo frequency comb.
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