Premium
UV laser generation in GdYCOB crystal
Author(s) -
Furuya Hiroyuki,
Nakao Hiroshi,
Yoshimura Masashi,
Mori Yusuke,
Sasaki Takatomo
Publication year - 2001
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.1054
Subject(s) - birefringence , crystal (programming language) , laser , materials science , harmonics , second harmonic generation , optics , radiation , optoelectronics , crystal growth , phase (matter) , crystallography , chemistry , physics , organic chemistry , quantum mechanics , voltage , computer science , programming language
We have developed a new rare‐earth calcium oxyborate crystal Gd x Y 1‐ x Ca 4 O(BO 3 ) 3 (GdYCOB) in order to control birefringence in nonlinear optical crystals. This GdYCOB has been grown by the Czochralski technique. In addition, we have succeeded in generating noncritically phase‐matched (NCPM) second and third harmonics of Nd:YAG laser radiation. We observed two types of photoinduced damage in high‐power third‐harmonic generation (THG). We report the prevention of these kinds of damage by means of an elevated crystal temperature and describe THG performance in the GdYCOB crystal. © 2001 Scripta Technica, Electr Eng Jpn, 136(2): 26–30, 2001