Megahertz repetition rate satellite laser ranging demonstration at Graz observatory

Peiyuan Wang*, Michael A. Steindorfer, Franz Koidl, Georg Kirchner, Erich Leitgeb

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Using ultra-high repetition rate lasers (≥ 100 kHz) is one of the most promising strategies for the next generation of satellite laser ranging (SLR) systems. We present successful 1 MHz repetition rate SLR to targets up to inclined geosynchronous orbits at nighttime. Among those, a maximum return rate of up to 53% was achieved, equivalent to 265 k returns per second for the satellite Swarm-B. In addition, daytime megahertz (MHz) SLR was realized by utilizing a propagated MHz range gate to reduce the massive background noise. In the future, MHz SLR will greatly improve current technology with respect to data amount and data precision, shorter acquisition time, target signature detection, and attitude determination.

Original languageEnglish
Pages (from-to)937-940
Number of pages4
JournalOptics Letters
Issue number5
Publication statusPublished - 1 Mar 2021

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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