25 September 2007 Coherent combining of multiple beams with multi-dithering technique: 100KHz closed-loop compensation demonstration
Author Affiliations +
Abstract
We demonstrate the coherent combining of three beams with a phase-locking controller using VLSI multi-dithering technique. Three fiber-coupled phase shifters are used to compensate phase distortions in the beam propagation path. The highest dither frequency in our system is ~70MHz. The achieved closed-loop compensation bandwidth of three beamlets is up to 100KHz.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ling Liu, Ling Liu, Dimitrios N. Loizos, Dimitrios N. Loizos, Mikhail A. Vorontsov, Mikhail A. Vorontsov, Paul P. Sotiriadis, Paul P. Sotiriadis, Gert Cauwenberghs, Gert Cauwenberghs, } "Coherent combining of multiple beams with multi-dithering technique: 100KHz closed-loop compensation demonstration", Proc. SPIE 6708, Atmospheric Optics: Models, Measurements, and Target-in-the-Loop Propagation, 67080D (25 September 2007); doi: 10.1117/12.736368; https://doi.org/10.1117/12.736368
PROCEEDINGS
9 PAGES


SHARE
Back to Top