Simultaneous Second-Harmonic, Sum-Frequency Generation and Stimulated Raman Scattering in MgO:PPLN

Autor: Chen Huaixi, Wan-Guo Liang, Dismas K. Choge, Li Guangwei, Lei Guo
Rok vydání: 2018
Předmět:
0301 basic medicine
Materials science
Lithium niobate
Physics::Optics
phase-matching
lcsh:Technology
01 natural sciences
Article
law.invention
010309 optics
Crystal
Condensed Matter::Materials Science
03 medical and health sciences
symbols.namesake
chemistry.chemical_compound
law
Condensed Matter::Superconductivity
0103 physical sciences
Physics::Atomic and Molecular Clusters
General Materials Science
lcsh:Microscopy
Raman
visible light
lcsh:QC120-168.85
Sum-frequency generation
lcsh:QH201-278.5
Laser diode
lcsh:T
business.industry
lithium niobate
frequency conversion
030104 developmental biology
chemistry
lcsh:TA1-2040
symbols
Optoelectronics
lcsh:Descriptive and experimental mechanics
lcsh:Electrical engineering. Electronics. Nuclear engineering
lcsh:Engineering (General). Civil engineering (General)
Raman spectroscopy
business
lcsh:TK1-9971
Raman scattering
Tunable laser
Visible spectrum
Zdroj: Materials
Volume 11
Issue 11
Materials, Vol 11, Iss 11, p 2266 (2018)
ISSN: 1996-1944
Popis: In this study, simultaneous second-harmonic generation (SHG), sum frequency generation (SFG), and Raman conversion based on MgO-doped periodically poled lithium niobate (MgO:PPLN) for multi-wavelength generation is demonstrated. The approach used is based on a single MgO:PPLN crystal poled with a uniform period of 10.2 µ
m that phase matches SHG and SFG, simultaneously. Using a simplified double-pass geometry, up to 0.8 W of blue light at 487 nm is achieved by a frequency-doubling 974 nm laser diode pump, and 0.5 W of orange light at 598 nm is generated by frequency mixing 974 nm pump with C-band (1527&ndash
1565 nm) tunable laser source. At high pump powers of the 974 nm laser source, other unexpected peaks at 437, 536, 756, 815 and 1038 nm were observed, of which the 1038 nm line is due to Stimulated Raman Scattering within the MgO:PPLN crystal. The resulting multi-wavelength light source may find a wide range of applications in biomedicine and basic research.
Databáze: OpenAIRE
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