The power scaling and frequency stabilization of a high-power, injection-locked, arc-lamp-pumped Nd:YAG laser at 1064 nm are discussed theoretically and experimentally. Thermal lensing and induced birefringence at high pump powers are modeled, and the effectiveness of the model for compensating thermal lensing is demonstrated with four different laser heads. Two distinct active frequency-stabilization schemes for injection-locked lasers are also compared theoretically and experimentally. These efforts yield a 24-W, linearly polarized, continuous-wave, TEM00 output with a spectral linewidth of 1.5 Hz measured by heterodyne detection.
© 2000 Optical Society of America
Original Manuscript: July 23, 1999
Revised Manuscript: February 2, 2000
Published: June 20, 2000
Russell F. Teehan, Joshua C. Bienfang, and Craig A. Denman, "Power scaling and frequency stabilization of an injection-locked Nd:YAG rod laser," Appl. Opt. 39, 3076-3084 (2000)