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Coherent beam combining using an internally sensed optical phased array of frequency-offset phase locked lasers

Roberts, Lyle; Ward, Robert; Smith, Craig; Shaddock, Daniel


Coherent beam combining can be used to scale optical power and enable mechanism-free beam steering using an optical phased array. Coherently combining multiple free-running lasers in a leader-follower laser configuration is challenging due to the need to measure and stabilize large and highly dynamic phase differences between them. We present a scalable technique based on frequency-offset phase locking and digitally enhanced interferometry to clone the coherence of multiple lasers without the...[Show more]

CollectionsANU Research Publications
Date published: 2020-11-28
Type: Journal article
Source: Photonics
DOI: 10.3390/photonics7040118
Access Rights: Open Access


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