Abstract
Passively continuous-wave mode-locking (CWML) characteristics from a class of mixed Nd:GdxY1−xVO4 laser crystals at 1.34 μm have been investigated with a semiconductor saturable absorber mirror (SESAM) for the first time. In contrast to the single Nd:YVO4 and Nd:GdVO4 crystals, the mixed vanadate crystals can produce broader emission spectra, shorter pulse width, and higher peak power. Under the same conditions, the mode-locking performances from series mixed vanadate crystals as well as the emitting spectral properties were experimentally investigated. At an incident diode pump power of 7.1 W, a minimum pulse width was as short as 6.3 ps from the mixed vanadate crystal with x = 0.63, while the highest peak power was 4.5 kW from the mixed crystal with x = 0.83.
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