6.2 W diode-end-pumped 1313 nm Nd:YLF laser

High average power 1314 nm Nd:YLF laser, passively Q-switched with V:YAG

“…The most efficient CW operation, as well as highest output power, was achieved with a 5% OC with a resulting slope efficiency of 29%. This laser had an incident pump power threshold of 9.25 W and a maximum power output of 10.4 W, which is 1.7 times higher than recently reported [3]. The beam had a symmetrical Gaussian profile, but at the maximum pump power the beam became slightly elliptical with the horizontal radius being ∼25% larger than the vertical.…”

“…To our knowledge, the highest 1.3 μm CW output power reported from a diode-end-pumped Nd:YLF laser is 6.2 W [3], which leaves room for power scaling as was done for 1.0 μm Nd:YLF [4,5], or 1.3 μm Nd:YAG, and Nd:GdVO 4 [6,7] lasers. Operating an endpumped Nd:YLF laser at 1.3 μm is attractive because of the weak thermal lens when it is operated on the σ polarization [8,9].…”

High-power 660.5 nm red laser from diode-side-pumped intracavity frequency-doubled Nd:YLF laser

“…These attracting features are capable of generating high power output with high beam quality, especially the near-diffraction-limited operation of relative low gain lines which has been hindered by the onset of strong thermal effects. Excellent results of diode-pumped Nd:YLF crystal 1.3 μm lasers have been reported by many researchers [7][8][9][10][11][12][13]. With nonlinear optical frequency doubling technology, the red lasers can be achieved which can be applied in optical clock, laser cooling and precision spectroscopy of hydrogenic systems [7,8].…”

Spectroscopic, thermal and laser characteristics of Nd:LiLuF4for 1314 nm laser

“…Lasers in the 1.3 µm spectral region have a wide range of applications, such as spectroscopy, communications, monitoring techniques, medical treatment and remote sensing [1][2][3][4][5]. It is well known that the 1.3 µm wavelength can be obtained in Nd 3+ doped fluoride and oxide crystals such as LiYF 4 (YLF), YVO 4 , GdVO 4 and YAG materials [6][7][8][9][10]. At present, among 1300-1350 nm Nd 3+ doped solid-state lasers, the wavelength of 1313 nm from an Nd:YLF crystal is the shortest.…”