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Journal Articles Optics Letters Year : 2012

Impact of spectral phase mismatch on femtosecond coherent beam combining systems

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Abstract

We experimentally investigate the impact of spectral phase mismatch on the coherent beam combining of two femtosecond fiber chirped-pulse amplifiers. By measuring the differential spectral phase, both linear and nonlinear contributions are identified. An accumulated nonlinear phase as high as 6 rad has been measured, for which a combination efficiency of 91% can be obtained by symmetrizing the pump and injection powers. This also allows us to quantitatively separate the spatial and temporal contributions of the nonperfect combining efficiency.
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Dates and versions

hal-00702163 , version 1 (29-05-2012)

Identifiers

  • HAL Id : hal-00702163 , version 1

Cite

Louis Daniault, Marc Hanna, Laurent Lombard, Yoann Zaouter, Eric Mottay, et al.. Impact of spectral phase mismatch on femtosecond coherent beam combining systems. Optics Letters, 2012, 37 (4), pp.650-652. ⟨hal-00702163⟩
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