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Title: Submicrojoule femtosecond erbium-doped fibre laser for the generation of dispersive waves at submicron wavelengths

We have demonstrated a femtosecond erbium-doped fibre laser system built in the master oscillator/power amplifier (MOPA) approach. The final amplifier stage utilises a specially designed large mode area active fibre cladding-pumped by multimode laser diodes. The system is capable of generating submicrojoule pulses at a wavelength near 1.6 μm. We have obtained 530-fs pulses with an energy of 400 nJ. The output of the system can be converted to wavelengths shorter than 1 μm through the generation of dispersive waves in passive nonlinear fibre. We have obtained ultra-short 7-nJ pulses with a spectral width of ∼100 nm and a centre wavelength of 0.9 μm, which can be used as a seed signal in parametric amplifiers in designing petawatt laser systems. (lasers)
Authors:
 [1] ; ; ; ; ;  [2] ; ;  [3] ;  [4] ; ;  [5]
  1. Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow Region (Russian Federation)
  2. Institute of Applied Physics, Russian Academy of Sciences, Nizhnii Novgorod (Russian Federation)
  3. Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation)
  4. ''FORC - Photonics'' Group, Moscow (Russian Federation)
  5. G.G.Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, Nizhnii Novgorod (Russian Federation)
Publication Date:
OSTI Identifier:
22375916
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 44; Journal Issue: 5; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DOPED MATERIALS; ERBIUM; FIBERS; LASERS; PARAMETRIC AMPLIFIERS; PETAWATT POWER RANGE; POWER AMPLIFIERS; PULSES; SEMICONDUCTOR DIODES; SIGNALS