Impact of spectral phase mismatch on femtosecond coherent beam combining systems.
نویسندگان
چکیده
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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ورودعنوان ژورنال:
- Optics letters
دوره 37 4 شماره
صفحات -
تاریخ انتشار 2012