Er 3 + -doped BaY2F8 crystal waveguides for broadband optical amplification at 1.5μm

Abstract

Comment on "Demonstration of net gain at 1550 nm in an erbium-doped polymer single mode rib waveguide"Integrated waveguide amplifiers based on high concentration Er 3+ doped BaY 2 F 8 crystals are numerically studied by combining a full-vectorial finite element based modal analysis and propagation-rate equations. Using realistic input data, such as the absorption/emission cross sections and Er level lifetimes measured on grown crystal samples, we investigate the amplifier performance by optimizing the total Er concentration. We predict optimum gain coefficient up to 5 dB/ cm and broad amplification bandwidth exceeding 80 nm with 1480 nm pumping.

Solvothermal synthesis and luminescence properties of BaCeF5, and BaCeF5:Tb3+ nanocrystals

“…In general, alkaline-earth lanthanide ternary fluorides, for examples, bulk BaLn 2 F 8 /BaYF 5 crystals 25,26 and nonstoichiometric single crystals R 12y M y F 32y (R = La-Er; M = Ca, Sr, Ba, Cd) 27 were prepared by traditional solid-state reaction method. Due to insufficient mixing and low reactivity of raw materials, several impurity phases easily co-exist in the product.…”

Facile hydrothermal synthesis and luminescent properties of Eu-doped CaF2–YF3alkaline-earth ternary fluoride microspheres

“…It is reported that barium yttrium uoride crystals such as BaY 2 F 8 and BaYF 5 are excellent host matrixes which can be doped with various lanthanide ions, exhibiting strong up/down-conversion luminescence. 12 Up to now, the fabrication of these ternary uorides mainly involved solid state reactions, [13][14][15][16] which has disadvantages of uncompleted production, irregular morphology, and larger particle size distribution. In comparison, solution-based syntheses possess some advantages in economical energy and facilities and controllable reaction conditions which result in rened morphology and size as well.…”

Hydrothermal Synthesis and Luminescence of Eu-Doped Ba0.92Y2.15F8.29 Submicrospheres

“…Compared with the fluorides mentioned above, alkaline-earth lanthanide ternary fluorides have obtained relatively little attention, although these barium yttrium fluoride crystals such as BaY 2 F 8 and BaYF 5 are excellent host matrixes that can be doped with divalent and trivalent lanthanide ions, exhibiting the strong broadband emission in the near UV spectra region (360−440 nm) and highly efficient infrared-to-visible up-conversion light . The related investigations are mainly dominated on the bulk BaLn 2 F 8 /BaYF 5 crystals , and nonstoichimetric single crystals R 1− y M y F 3− y (R = La−Er; M = Ca, Sr, Ba, Cd) . The synthesis of these ternary fluorides mainly involved solid-state reactions.…”