標題: Dual-central-wavelength passively mode-locked diffusion-bonded Nd:YVO4/Nd:GdVO4 laser with a semiconductor saturable absorber mirror
作者: Chang, F. L.
Sung, C. L.
Huang, T. L.
Wu, T. W.
Cho, H. H.
Liang, H. C.
Chen, Y. F.
電子物理學系
Department of Electrophysics
關鍵字: dual wavelength;mode locked;diffusion bonded;saturable absorber
公開日期: 1-八月-2017
摘要: A dual-central-wavelength passively mode-locked laser with full modulation in the 0.31 THz optical beating is achieved by using a diffusion-bonded Nd:YVO4/Nd:GdVO4 crystal and a semiconductor saturable absorber mirror. The output power of the dual-band emission is well balanced by tuning the focal position of the pump waist. At a pump power of 13 W, the total output power is up to 2.7 W with a repetition rate of 297.9 MHz. The autocorrelation traces clearly reveal the synchronization of the dual-band emission. Moreover, an analytical model is developed to manifest the multi-pulse structure caused by the etalon effect of the gain medium. More important, we experimentally verify that the etalon effect can be completely eliminated by using the wedge-cut diffusion-bonded Nd:YVO4/Nd:GdVO4 crystal.
URI: http://dx.doi.org/10.1088/1612-202X/aa7709
http://hdl.handle.net/11536/145017
ISSN: 1612-2011
DOI: 10.1088/1612-202X/aa7709
期刊: LASER PHYSICS LETTERS
Volume: 14
顯示於類別:期刊論文