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  • Title: Generation of 578-nm yellow light over 10 mW by second harmonic generation of an 1156-nm external-cavity diode laser.
    Author: Lee WK, Park CY, Yu DH, Park SE, Lee SB, Kwon TY.
    Journal: Opt Express; 2011 Aug 29; 19(18):17453-61. PubMed ID: 21935111.
    Abstract:
    578-nm yellow light with an output power of more than 10 mW was obtained using a waveguide periodically-poled-lithium-niobate crystal as a nonlinear medium for second harmonic generation, which is the highest output power at this wavelength using second harmonic generation of a solid state laser source without an enhancement ring cavity, to our knowledge. To achieve this result we made a high power 1156-nm external-cavity diode laser with the maximum output power of more than 250 mW. This system is expected to be an excellent alternative to the system using the sum-frequency generation with the advantage of simplicity and cost-effectiveness, and will be used as a clock laser of the ytterbium optical lattice clock with robust and reliable operation.
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