title: Ho:YAG single crystal fiber: fabrication and optical characterization.
abstract: 0.5% Holmium (Ho) doped YAG single crystal fiber (SCF) was fabricated using Laser Heated Pedestal Growth (LHPG) method and characterized for its optical absorption and emission properties involving transitions between the 5I8 and 5I7 energy levels. The results verified the absorption peaks suitable for in-band direct pumping at 1908 nm and 1932 nm with the emission occurring between 2050 and 2150 nm. Small signal gain measurements were also performed for demonstrating the fiber like characteristics of the SCF.
authors: Yuan
authors: Y
authors: Li
authors: Eric G
authors: EG
authors: Johnson
authors: Craig D
authors: CD
authors: Nie
authors: James A
authors: JA
authors: Harrington
authors: Ramesh
authors: R
authors: Shori