Optimal design of passively Q-switched microlaser transmitters for satellite laser ranging

摘要

The workhorse for third generation satellite laser ranging systems has been the modelocked Nd:YAG laser which produces pulsewidths measured in tens to hundreds of picoseconds. These systems are typically large (> 1 m long), complex, and require relatively sophisticated modulation and switching electronics, passive or active thermal control o f the resonator length, and, in some cases, the use of limited lifetime dyes and carcinogenic solvents. Their complexity and reliance on inexpensive but short-lived flashamps for pumping, with tier attendant high voltage power supplies and ionozation circuits, further ensures a high level of maintenance by onsite personnel.