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The presence of excited state absorption at the 1.06 μm lasing wavelength of Nd doped glasses is demonstrated. The excited state absorption cross-section for silicate (LG680) and phosphate (LG760) glasses was extracted from gains measurements associated to a theoretical model which is described in this paper. From both measurements and the Judd-Ofelt formalism calculation, we show that excited state...
Summary form only given. We report the amplification of broadband pulses in laser-pumped Nd:glasses with obvious applications to ultrashort pulse technology and to a front-end for the envisioned Megajoules laser facility devoted to inertial confinement fusion (ICF) studies and ignition demonstration. The broadband capability is then required to implement optical smoothing techniques with nanosecond...
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