Abstract
Direct frequency doubling of a wavelength locked laser diode with an optical bandpass filter in a confocal optical configuration is demonstrated. The wavelength of the laser diode was locked in single longitudinal mode oscillation and tuned to phase-matching wavelength of a quasi-phase-matched second harmonic generation device based on a LiTaO3 Waveguide. Stable blue light of 4.2 mW was obtained for incident power of 48 mW.
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Kitaoka, Y., Mizuuchi, K., Yamamoto, K. et al. Frequency doubling of wavelength locked laser diOde with a transmission-type filter in a confocal optical configuratiOn. Optical Review 1, 227–229 (1994). https://doi.org/10.1007/BF03254870
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DOI: https://doi.org/10.1007/BF03254870