Control of gray-tracking formation for KTP and LBO crystals

  title={Control of gray-tracking formation for KTP and LBO crystals},
  author={Shinji Motokoshi and Takahisa Jitsuno and Yu. Izawa and Masahiro Nakatsuka},
  journal={Technical Digest. CLEO/Pacific Rim 2001. 4th Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.01TH8557)},
Gray-tracking formations for KTP crystals were controlled by thermal annealing process before laser irradiation because hydroxyls in the crystals were controllable. The formation was suppressed with increasing the annealing temperature and humidity. LBO crystals were also examined.