A5016067558- Solid State Laser Technologies
- Glass properties and applications
- Advanced Fiber Laser Technologies
- Photonic Crystal and Fiber Optics
- Luminescence Properties of Advanced Materials
- Laser Design and Applications
- Phase-change materials and chalcogenides
- Photorefractive and Nonlinear Optics
- Advanced Fiber Optic Sensors
- Laser Material Processing Techniques
- Semiconductor Lasers and Optical Devices
- Laser-Matter Interactions and Applications
- Photonic and Optical Devices
- Optical Network Technologies
- Quantum optics and atomic interactions
- Surface Roughness and Optical Measurements
- Mineralogy and Gemology Studies
- Photonic Crystals and Applications
- Magneto-Optical Properties and Applications
- Random lasers and scattering media
- Cultural Heritage Materials Analysis
- Optical and Acousto-Optic Technologies
- Spectroscopy and Laser Applications
- Laser Applications in Dentistry and Medicine
- Topological Materials and Phenomena
Prokhorov General Physics Institute
2015-2024
Russian Academy of Sciences
2001-2021
Institute of Laser Physics
2018
Vavilov Institute of General Genetics
1994-2006
Institute of Gene Biology
2004
Institute on Laser and Information Technologies
2001
KTH Royal Institute of Technology
2000
Efficient room temperature mid-infrared laser action in a Ce
We present a composite optical fiber with Er/Yb co-doped phosphate-glass core in silica glass cladding as well pumped laser. The fabrication process, properties, and lasing parameters are described. slope efficiency under 980 nm pumping reached 39% respect to the absorbed pump power 28% coupled power. Due high doping level of phosphate optimal length was several times shorter than that fibers.
Abstract Energy, spectral and temporal characteristics of a Ce 3+ -doped chalcogenide glass fiber laser continuously pumped by 4.16 μ m Fe 2+ :ZnSe were investigated. Milliwatt level output power was obtained. In case low Q-factor the resonator operated at λ = 4.62 corresponding to narrow peak in emission spectrum. At higher Q-factor, lasing wavelength changed 5.0–5.1 plateau gain contrast Tb mid-infrared lasers, had no tendency non-relaxing spike operation.
We report on passively Q-switched operation of a diode-pumped Er–Yb:glass laser with Co2+:MgAl2O4 plate as saturable absorber. Optical pulses peak power exceeding 2 kW and pulse length 2.3 ns have been generated. Single-longitudinal-mode at 1.53 µm has obtained by use the an intracavity etalon. A discussion optimal Er3+ concentration well optimization cavity design is included.
In high purity <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:msup> <mml:mi mathvariant="normal">C</mml:mi> mathvariant="normal">e</mml:mi> </mml:mrow> <mml:mn>3</mml:mn> <mml:mo>+</mml:mo> </mml:msup> </mml:math> -doped selenide glass pumped by a 4.08 µm Fe:ZnSe laser, 5.1–5.5 laser oscillations were observed. This is the first evidence of action corresponding to <mml:mi/> <mml:mn>2</mml:mn> <mml:msub>...
An extensive study of a novel room-temperature mid-infrared Ce 3+ -doped Ge 20 Sb 10 Ga 5 Se 65 glass laser is reported. influence output-coupler transmission on efficiency and emission spectra investigated. Pumped by pulsed Fe:ZnSe at 4.1 µm, maximum output energy 35 mJ demonstrated 5.2 with threshold about 60 slope 21%. The tuning range Ce:glass reported for the first time: an intracavity prism, continuously tunable in spectral 4.5–5.6 µm. internal losses are determined to be below 9% per...
Efficient mid IR (1.5–2.2 μm) Raman lasers based on novel BaWO 4 and known Ba(NO 3 ) 2 crystals were developed investigated. Different Stokes shifted components obtained with longest wavelength about 2.2 μm efficiency up to 10%.
The influence of rare earth dopant concentration on selenide laser glass quality was investigated. A problem to be solved identified – an increase in doping level leads optical losses due light scattering by heterogeneous inclusions and the decrease damage threshold. room temperature system consisting 4.6 μ m pulsed Fe:ZnSe pump Ce 3+ :Ge 20 Sb 10 Ga 5 Se 65 bulk demonstrated. slope efficiency :glass with respect absorbed energy reached 25% a maximum output 45 mJ.
This letter demonstrates the passive Q-switching possibility of a 2.3 µm Tm-doped tellurite glass laser with help Fe2+:ZnS saturable absorber. In contrast to Cr2+—doped materials, this absorber is transparent at pump wavelengths (0.69 or 0.8 µm). Pulses as short 150–200 ns were formed.