Gd1−xYxCa4O (BO3)3 (GdYCOB) crystal operating at raised temperature suppressed photo-induced damages such as photorefractive damage and gray-track in noncritically phase-matched third-harmonic generation of Nd:YAG lasers. We have investigated the dependence of photo-induced damage tolerance on the growth atmosphere in GdYCOB. It was found that the crystal grown in the air had more than three times higher tolerance of gray-tracking than that grown in Ar atmosphere. It is shown that gray-track was related to oxygen defects in the crystal.

© 2001 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription