Diode-pumped multilayer Yb:YAG composite ceramic laser

Abstract

All-ceramic multilayer composite ytterbium doped yttrium aluminum garnet (Yb:YAG) laser gain medium with doping concentration distribution of 0-5-10-15-20-15-10-5-0 at.% Yb ions was successfully fabrication by the technique of c

Transparent Ceramics

“…Direct nitridation of Si is a widely used method to synthesize Si 3 N 4 powders, in which Si powder with particle sizes in the range of 5-20 μm is reacted with N 2 at temperatures of 1200-1400°C for 10-30 h [309][310][311][312][313][314]. The Si 3 N 4 powder is usually a mixture of α and β phases.…”

Manufacturing issues and optical properties of rare-earth (Y, Lu, Sc, Nd) aluminate garnets composite transparent ceramics

“…Shaping processes of powders or suspensions already proven to be very promising to fabricate such pieces are uniaxial pressing [11], slip-casting [12] and tape-casting [13,14]. As a result, laser ceramic amplifier media with complex luminescent ions distribution in the form of multilayer, clad-core or continuous gradient [13,15,16] can be fabricated. These new type of architectures can improve the optical properties of laser sources by increasing spectral gain emission, which can favor short and powerful pulsed emission at different wavelengths.…”

Comparative investigation on Yb:YAG and Yb:LuAG transparent laser ceramics

“…In recent years, Yb 3+ ions doped gain materials have attracted much attention for their application to the compact high power and high efficiency lasers, such as Yb:YAG and Yb:LuAG materials, because of their simple electronic energy level schemes ( 2 F 5/2 -2 F 7/2 intermanifold transition) [3][4][5][6][7][8][9][10][11][12][13][14][15]. Yb:YAG crystals or polycrystalline ceramics are regarded as one of the dominant laser gain mediums due to their excellent properties in optical, chemical, thermal and mechanical aspects [16,17]. However, when doped into YAG matrix, Yb 3+ ions substitute Y 3+ sites, thus inducing crystal distortion to some degree.…”