title: Efficient second harmonic generation of double-end diffusion-bonded Nd:YVO4 self-Raman laser producing 7.9 W yellow light.
abstract: A high power and efficient 588 nm yellow light is demonstrated through intracavity frequency doubling of an acousto-optic Q-switched self-frequency Raman laser. A 30-mm-length double-end diffusion-bonded Nd:YVO(4) crystal was utilized for efficient self-Raman laser operation by reducing the thermal effects and increasing the interaction length for the stimulated Raman scattering. A 15-mm-length LBO with non-critical phase matching (theta = 90 degrees, phi = 0 degrees) cut was adopted for efficient second-harmonic generation. The focus position of incident pump light and both the repetition rate and the duty cycle of the Q-switch have been optimized. At a repetition rate of 110 kHz and a duty cycle of 5%, the average power of 588 nm light is up to 7.93 W while the incident pump power is 26.5 W, corresponding to an overall diode-yellow conversion efficiency of 30% and a slope efficiency of 43%.
authors.affiliation: Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, China.
authors.forename: Haiyong
authors.initials: H
authors.lastname: Zhu
authors.forename: Yanmin
authors.initials: Y
authors.lastname: Duan
authors.forename: Ge
authors.initials: G
authors.lastname: Zhang
authors.forename: Chenghui
authors.initials: C
authors.lastname: Huang
authors.forename: Yong
authors.initials: Y
authors.lastname: Wei
authors.forename: Hongyuan
authors.initials: H
authors.lastname: Shen
authors.forename: Yiqun
authors.initials: Y
authors.lastname: Zheng
authors.forename: Lingxiong
authors.initials: L
authors.lastname: Huang
authors.forename: Zhenqiang
authors.initials: Z
authors.lastname: Chen
mesh_terms: D003460:Crystallization; D004058:Diffusion; D004867:Equipment Design; D007834:Lasers; D008027:Light; D009354:Neodymium / Q000737:chemistry*; D013059:Spectrum Analysis, Raman / Q000379:methods*; D013997:Time Factors; D014639:Vanadium / Q000737:chemistry*; D015019:Yttrium / Q000737:chemistry*
chemical_list: D014639:Vanadium; D009354:Neodymium; D015019:Yttrium