title: High-power narrow-linewidth quasi-CW diode-pumped TEM00 1064 nm Nd:YAG ring laser.
abstract: We demonstrated a high average power, narrow-linewidth, quasi-CW diode-pumped Nd:YAG 1064 nm laser with near-diffraction-limited beam quality. A symmetrical three-mirror ring cavity with unidirectional operation elements and an etalon was employed to realize the narrow-linewidth laser output. Two highly efficient laser modules and a 90° quartz rotator for birefringence compensation were used for the high output power. The maximum average output power of 62.5 W with the beam quality factor M(2) of 1.15 was achieved under a pump power of 216 W at a repetition rate of 500 Hz, corresponding to the optical-to-optical conversion efficiency of 28.9%. The linewidth of the laser at the maximum output power was measured to be less than 0.2 GHz.
authors.affiliation: RCLPT, Key Lab of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Liu
authors.forename: Bao-shan
authors.initials: BS
authors.lastname: Wang
authors.forename: Shi-yong
authors.initials: SY
authors.lastname: Xie
authors.forename: Yong
authors.initials: Y
authors.lastname: Bo
authors.forename: Peng-yuan
authors.initials: PY
authors.lastname: Wang
authors.forename: Jun-wei
authors.initials: JW
authors.lastname: Zuo
authors.forename: Yi-ting
authors.initials: YT
authors.lastname: Xu
authors.forename: Jia-lin
authors.initials: JL
authors.lastname: Xu
authors.forename: Qin-jun
authors.initials: QJ
authors.lastname: Peng
authors.forename: Da-fu
authors.initials: DF
authors.lastname: Cui
authors.forename: Zu-yan
authors.initials: ZY
authors.lastname: Xu