Stable 120-mW green output tunable over 2 THz by a second-harmonic generation process in a KTP crystal at room temperature

  • Hadjar Y
  • Ducos F
  • Acef O
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We report on 120-mW directly measured cw power at 532 nm from a tunable $α$-distributed-feedback laser diode near 1.064 {\textmu}m frequency doubled in a KTP crystal operating room temperature inside a ring cavity. Our experimental setup allows us to scan frequencies up to 2 THz in the green-light domain and thus is extremely useful for iodine spectroscopy. We show good agreement between experimental results and theoretical predictions for the second-harmonic generation process.

Author-supplied keywords

  • Fabry-Perot
  • Metrology
  • Optical standards and testing

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  • Y Hadjar

  • F Ducos

  • O Acef

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