Coherent Beam Combination of Four Holmium Amplifiers using Direct Phase Control from a DDS Chip and a SPGD Algorithm

Authors :: Nikita Simakov
John Haub
Keiron Boyd
Michael R. Oermann
Dmitrii Stepanov
Leonardo Corena
Simon J. Rees
Neil Carmody
Alexander Hemming
Alan Davidson
Robert Swain
Source :: Laser Congress 2017 (ASSL, LAC).
Publication Year :: 2017
Publisher :: OSA, 2017.
Abstract: We present the coherent beam combination of four 2100 nm holmium amplifiers using direct digital synthesizer chip controlled acousto-optic modulators and a stochastic parallel gradient descent algorithm.

Subjects :: Materials science
business.industry
Amplifier
Physics::Optics
chemistry.chemical_element
Chip
Stochastic gradient descent
Optics
chemistry
Direct digital synthesizer
Fiber laser
Electronic engineering
Holmium
Gradient descent
business
Beam (structure)

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