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Title: Highly coherent red-shifted dispersive wave generation around 1.3 μm for efficient wavelength conversion

This research investigates the mechanism of the optical dispersive wave (DW) and proposes a scheme that can realize an efficient wavelength conversion. In an elaborately designed photonic crystal fiber, a readily available ytterbium laser operating at ∼1 μm can be transferred to the valuable 1.3 μm wavelength range. A low-order soliton is produced to concentrate the energy of the DW into the target wavelength range and improve the degree of coherence. The input chirp is demonstrated to be a factor that enhances the wavelength conversion efficiency. With a positive initial chirp, 76.6% of the pump energy in the fiber can be transferred into a spectral range between 1.24 and 1.4 μm. With the use of a grating compressor, it is possible to compress the generated coherent DW of several picoseconds into less than 90 fs.
Authors:
;  [1] ;  [2] ; ; ; ;  [1] ;  [3]
  1. Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)
  2. (China)
  3. School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009 (China)
Publication Date:
OSTI Identifier:
22399243
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPRESSORS; CONVERSION; CRYSTALS; EFFICIENCY; LASER RADIATION; OPTICAL FIBERS; RED SHIFT; SOLITONS; WAVE PROPAGATION; WAVELENGTHS; YTTERBIUM