Figure 1
From: JOKARUS - design of a compact optical iodine frequency reference for a sounding rocket mission
Photographs of three laser payloads successfully operated on sounding rocket flights. (a) FMS based DFB laser system for Rb spectroscopy (FOKUS, 215 mm ×170 mm ×50 mm, 2.1 kg), (b) MTS based DBF reference laser system for Rb spectroscopy (FOKUS-Reflight, 288 mm ×170 mm\(~\times \)50 mm, 3.0 kg) and (c) Potassium stabilized laser system with two ECDLs (KALEXUS, 345 mm × 218 mm\(~\times \)186 mm, 16 kg).