Abstract
We present a micro-integrated laser module based on an amplified diode laser and second harmonic generation which is a promising candidate for a green light source in next-generation 3D holographic displays. The light emitted by the amplified laser has a wavelength of 1064 nm, reaches a power up to 8.2 W and has a long coherence length of >400 m. For second harmonic generation, we tested two geometries of periodically poled lithium niobate crystals in single pass: a bulk crystal and a planar waveguide crystal. With the planar waveguide crystal, we achieve an output power >900 mW and a coherence length >20 m at a wavelength of 532 nm.
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Acknowledgments
We would like to thank all the colleagues at the Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik who contributed to this work. This work was funded by the Korean government for the global joint project “Development of narrow-band Red/Blue/Green compact laser modules for the next-generation 3D-LCDTV (HolographicTV).
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Hofmann, J., Blume, G., Jedrzejczyk, D. et al. Miniaturized diode laser module emitting green light at 532 nm with a power of more than 900 mW for next-generation holographic displays. Opt Rev 23, 141–145 (2016). https://doi.org/10.1007/s10043-015-0149-7
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DOI: https://doi.org/10.1007/s10043-015-0149-7