Broadband gain characterization of Co:MgF2 for mid-infrared femtosecond pulse amplification
Abstract
The broadband gain characteristics of Co:MgF2 were investigated to assess its potential as a gain medium for ultrashort-pulse amplification around the 2 μm spectral region. Single-pass gain measurements performed using femtosecond seed pulses revealed broadband amplification in the 1.5-2.4 μm region. The temporal dynamics and spectra of the gain were experimentally characterized and utilized for numerical simulations to assess the feasibility of Co:MgF2 as a broadband gain medium for ultrashort pulses. The results indicate its potential for broadband amplification in future short-wave infrared to mid-infrared ultrafast laser systems, particularly when combined with coherent waveform synthesis or post-compression techniques.
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