Coherent Beam Combining of Fiber Amplifiers via LOCSET

Flores, Angel; Pulford, Benjamin; Robin, Craig; Lu, Chunte A.; Shay, Thomas M.

doi:10.1002/9783527652778.ch02

Cited by 2 publications

(1 citation statement)

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“…The nonzero amplitude of phase dithers induces a residual phase error that has in most practical case negligible impact on the combining efficiency. In CW regime LOCSET can be easily scaled to a large number of channels and has been used to combine 32 low-power CW laser beams (Flores et al 2013). In pulsed regime, the applied phase dither frequency must be less than half the repetition rate of the system.…”

Section: Phase Measurement and Active Feedback Techniquesmentioning

confidence: 99%

Coherent combination of ultrafast fiber amplifiers

Hanna

Guichard

Zaouter

et al. 2016

J. Phys. B: At. Mol. Opt. Phys.

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We review recent progress in coherent combining of femtosecond pulses amplified in optical fibers as a way to scale the peak and average power of ultrafast sources. Different methods of achieving coherent pulse addition in space (beam combining) and time (divided pulse amplification) domains are described. These architectures can be widely classified into active methods, where the relative phases between pulses are subject to a servomechanism, and passive methods, where phase matching is inherent to the geometry. Other experiments that combine pulses with different spectral contents, pulses that have been nonlinearly broadened or successive pulses from a mode-locked laser oscillator, are then presented. All these techniques allow access to unprecedented parameter range for fiber ultrafast sources.

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Section: Phase Measurement and Active Feedback Techniquesmentioning

confidence: 99%