Side-Pumped Nd³⁺:Y₃Al₅O₁₂ Composite Ceramic Laser

Abstract

We have fabricated a composite ceramic rod that consists of a 0.8 at. % Nd:Y3Al5O12 core part and an Y3Al5O12 clad part. A high-power laser diode side-pumped cw laser was demonstrated with the composite ceramic rod. A maximum output of 70 W with a slope efficiency of 29% was obtained at 1064 nm. The laser output with the composite rod was about 25% higher than that of noncomposite rod under the same conditions. Thermally induced birefringence and the thermal lens effect of both rods were also investigated.

SrS:Ce and LuPO4:Eu Sintered Ceramics: Old Phosphors with New Functionalities

“…[22][23][24][25][26] In time this technology got improved and it became clear that sintered optical ceramics offer great potentials and can successfully compete with single crystals technologies even in such demanding applications as lasers or scintillators. [27][28][29][30][31] What is more, lessons learn from sintering of optically isotropic materials allowed to broaden the research toward anisotropic compositions. A spectacular achievement in this field is a development of sintering technology of highly-translucent ceramics of Gd 2 O 2 S:Pr (GOS) to make it usable in CAT systems.…”

Ion diffusion at the bonding interface of undoped YAG/Yb:YAG composite ceramics

“…Composite ceramics are useful for improving the performance of high-average-power lasers, and numerous studies on laser development using yttrium aluminum garnet (YAG) composite ceramics have been published [1][2][3]. Several methods to manufacture composite ceramics have been reported to date [4][5][6][7][8][9].…”

Composite Yb:YAG/Cr^4+:YAG ceramics picosecond microchip lasers

“…Highly transparent Lu 3+ -lasant (Nd 3+ , Yb 3+ , Er 3+ ) doped crystalline ceramics have gained more attention as novel solid-state laser materials due to their several remarkable advantages [1][2][3], such as high concentration doping especially for Nd 3+ ions in yttrium aluminum garnet (YAG), easy fabrication of large-size ceramic samples, low cost, mass production and multilayer and multifunctional ceramics lasing components, compared with the same name of laser single crystals. Efficient Xe-flashlamp-pumped Cr 3+ , Nd 3+ -codoped YAG ceramic laser has been demonstrated recently [1].…”

“…Modern sintering ceramic technology allows to form composite materials to reduce the thermal effect and to suppress parasitic oscillation [4]. Efficient laser performance with Nd:YAG lasing and undoped YAG -cap or -clad parts has been reported recently [2,5]. High power CW operation of edge-pumped composite allceramic Yb:YAG lasers surrounded with undoped YAG-cap part have been demonstrated recently as well [6].…”