New Co-containing glass ceramics saturable absorbers for 1.5-um solid state lasers

Alexander M. Malyarevich; Igor A. Denisov; Konstantin V. Yumashev; Tamara I. Chuvaeva; Olga S. Dymshits; Alexei A. Onushchenko; Alexander A. Zhilin

doi:10.1117/12.420951

23 March 2001 New Co-containing glass ceramics saturable absorbers for 1.5-μm solid state lasers

Alexander M. Malyarevich, Igor A. Denisov, Konstantin V. Yumashev, Tamara I. Chuvaeva, Olga S. Dymshits, Alexei A. Onushchenko, Alexander A. Zhilin

Author Affiliations +

Proceedings Volume 4350, Laser Optics 2000: Solid State Lasers; (2001) https://doi.org/10.1117/12.420951
Event: Laser Optics 2000, 2000, St. Petersburg, Russian Federation

Abstract

New saturable absorber Q-switch for 1.54 %mum Er: glass laser is present. The saturable absorber is transparent glass ceramic containing magnesium-aluminum spinel nanocrystallites doped with tetrahedrally coordinated Co²⁺ ions. Q-switched pulses of up to 5.5 mJ in energy and 80 ns in duration at 1.54 micrometers were achieved. Relaxation time of the ⁴A₂ to ⁴T₁(⁴F) transition bleaching was measured to be (450+/- 150)ns. Ground-state absorption cross-sections at 1.54 micrometers wavelength were estimated to be (3.2+/- 0.4)*10^-19 cm² and (5.0+/- 0.6)X10^-20 cm², respectively. Results of study absorption and luminescence spectra of different glass ceramics on the base of magnesium-aluminum, zinc-aluminum, lithium-aluminum spinel nanocrystallites doped with tetrahedrally coordinated Co²⁺ ions are also analyzed.

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Alexander M. Malyarevich, Igor A. Denisov, Konstantin V. Yumashev, Tamara I. Chuvaeva, Olga S. Dymshits, Alexei A. Onushchenko, and Alexander A. Zhilin "New Co-containing glass ceramics saturable absorbers for 1.5-μm solid state lasers", Proc. SPIE 4350, Laser Optics 2000: Solid State Lasers, (23 March 2001); https://doi.org/10.1117/12.420951

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