Glass-ceramics withγ-Ga2O3:Co2+nanocrystals: saturable absorber for 1.5–1.7 μm Er lasers

Pavel Loiko; О. С. Дымшиц; Vladimir Vitkin; Н. А. Скопцов; A. A. Kharitonov; А. А. Жилин; И. П. Алексеева; Svetlana Zapalova; A. M. Malyarevich; И. В. Глазунов; K. V. Yumashev

doi:10.1088/1612-2011/12/3/035803

JOURNAL ARTICLE

Glass-ceramics withγ-Ga₂O₃:Co²⁺nanocrystals: saturable absorber for 1.5–1.7 μm Er lasers

Pavel Loiko О. С. Дымшиц Vladimir Vitkin Н. А. Скопцов A. A. Kharitonov А. А. Жилин И. П. Алексеева Svetlana Zapalova A. M. Malyarevich И. В. Глазунов K. V. Yumashev

Year: 2015 Journal: Laser Physics Letters Vol: 12 (3)Pages: 035803-035803 Publisher: IOP Publishing

DOI: 10.1088/1612-2011/12/3/035803

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Abstract

Transparent glass-ceramics containing ?-Ga2O3:Co2+ nanosized (7?12?nm) crystals are synthesized in a lithium gallium silicate system. Their spectroscopic and nonlinear properties are studied. The absorption band related to the 4A2g(4F)???4T1g(4F) transition of Co2+ ions in tetrahedral sites for these glass-ceramics is red-shifted up to ~1.8??m. The absorption saturation fluence is determined to be ~0.8?J?cm?2. The developed glass-ceramics are used for passive Q-switching of diode-pumped Er,Yb:glass laser delivering 1.75?mJ 25?ns-long pulses at 1540?nm.

Keywords:

Saturable absorption Materials science Nanocrystal Laser Ceramic Optoelectronics Optics Nanotechnology Fiber laser Physics Composite material

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Solid State Laser Technologies

Physical Sciences → Engineering → Electrical and Electronic Engineering

Ga2O3 and related materials

Physical Sciences → Materials Science → Electronic, Optical and Magnetic Materials

Luminescence Properties of Advanced Materials

Physical Sciences → Materials Science → Materials Chemistry

Glass-ceramics withγ-Ga₂O₃:Co²⁺nanocrystals: saturable absorber for 1.5–1.7 μm Er lasers

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