Yb 3+ : Sc 2 O 3 ceramic laser

Abstract

A solid-state laser material based on highly transparent Yb3+-doped scandia (Sc2O3) ceramic was developed using nanocrystalline technology and the nonpress vacuum sintering method. Continuous wave laser oscillations were obtained at around 1041 and 1094 nm using a 2.5 at. % Yb3+:Sc2O3 ceramic plate. Broadband lasing spectra were observed.

High-power tunable diode-pumped Yb^3+:CaF_2 laser

“…Although CaF 2 material can already be produced with large dimensions as single crystals, its cubic structure also makes CaF 2 potentially suitable as a ceramic laser host, 6 opening the way to all the advantages in laser design that are supplied by this technology. 7 Moreover, the thermal conductivity of this crystal, at least when it is undoped, is 9.7 W m 21 K 21 , similar to that found for YAG and nearly twice that of other low-phonon f luoride crystals, such as LiCaAlF 6 or LiYF 4 . 8 Even if CaF 2 exhibits a lower thermal conductivity when it is doped with rare-earth ions (we estimated the conductivity at ϳ4 W m 21 K 21 for a 5-at.…”

Crystal growth by the heat exchanger method, spectroscopic characterization and laser operation of high-purity Yb:Lu2O3

“…Earlier attempts with the Verneuil-method [9], the floating zone technique [10], the laser-heated pedestal growth (LPHG) [11], and very recently the growth of Tm:Y 2 O 3 by the micro-pullingdown technique [12] resulted in crystals limited in size and quality. Another promising alternative for the preparation of sesquioxides is the fabrication of ceramic laser materials, which has been studied intensely [13][14][15]. Even though efficient laser operation has been demonstrated with ceramic Yb:Y 2 O 3 [16], only a rather low efficiency could be obtained with ceramic Yb:Lu 2 O 3 up to now [17].…”

Diode pumped highly efficient Yb:Lu3Al5O12 ceramic laser

“…Recently, polycrystalline transparent ceramics as solid-state laser gain media have been intensively investigated [14][15][16][17][18]. Polycrystalline ceramics as laser gain host have a number of advantages compared with the single crystals, such as feasible high doping concentrations, flexible size, composite structure, and short fabrication time.…”