Abstract
A KTP is a most popular nonlinear crystal for generating green light because of its wide temperature acceptance. It is well known that a KTP shows optical damage (gray tracking), especially under at high power density. A potassium niobate (KN) is expected as an nonlinear crystal for the highpower green laser, since it does not show optical damage under high power density at room temperature. However, its critical phase matching suffers from narrow angle acceptance (Δθ̕ = 0.03 deg/cm), which deteriorates the transversal beam shape. We fabricated periodically poled potassium niobate (PPKN) for green generation and SHG characteristics were compared with the conventional angle-cut KN(θ̕ = 71,ϕ = 90, L = 5 mm).
© 2002 Optical Society of America
PDF ArticleMore Like This
Nan Ei Yu, Sunao Kurimura, Kenji Kitamura, Oc-Yeub Jeon, Myoungsik Cha, Satoshi Ashihara, Takayuki Ohta, Tsutomu Shimura, Kazuo Kuroda, Junji Hirohashi, and Jung Hoon Ro
CThU4 Conference on Lasers and Electro-Optics (CLEO:S&I) 2004
E. J. LIM, MARTIN M. FEJER, and ROBERT L. BYER
THQ4 Conference on Lasers and Electro-Optics (CLEO:S&I) 1989
Nan Ei Yu, Jung Hoon Ro, Myoungsik Cha, Sunao Kurimura, and Takunori Taira
CWL6 Conference on Lasers and Electro-Optics (CLEO:S&I) 2002