Open AccessHigh-average-power 266 nm generation with a KBe_2BO_3F_2 prism-coupled device
Author(s) -
Lirong Wang,
Naixia Zhai,
Lijuan Liu,
Xiaoyang Wang,
Guiling Wang,
Yong Zhu,
Chuangtian Chen
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.027086
Subject(s) - optics , materials science , prism , jitter , laser , second harmonic generation , power (physics) , bandwidth (computing) , optoelectronics , physics , computer science , telecommunications , quantum mechanics
High-average-power fourth harmonic generation (4thHG) of an Nd:YAG laser has been achieved by using a KBe₂BO₃F₂-prism-coupled device (KBBF-PCD) . The highest output power of 7.86 W at 266 nm was obtained with a conversion efficiency of 10%. To our knowledge, this is the highest power ever obtained by a KBBF-PCD. The stability of the 266 nm output power at 3.26 W was measured over a period of 60 minutes, and the standard deviation jitter of the average power was 1.4%. Moreover, the temperature bandwidth for KBBF was also measured at 266nm for the first time,which shows that KBBF has significant advantages in high power 4thHG compared to other major nonlinear optical crystals and is potential for UV applications.