標題: Effect of spatial hole burning on a dual-wavelength mode-locked laser based on compactly combined dual gain media
作者: Huang, Y. J.
Tzeng, Y. S.
Cho, H. H.
Chen, Y. F.
電子物理學系
電子工程學系及電子研究所
Department of Electrophysics
Department of Electronics Engineering and Institute of Electronics
公開日期: 1-Dec-2014
摘要: The effect of spatial hole burning (SHB) on dual-wavelength self-mode-locked lasers based on physically combined Nd:YVO4/Nd:LuVO4 and Nd:YVO4/Nd:KGW composite active medium is comparatively investigated. The length of the first Nd:YVO4 crystal is optimized to realize a highly compact and efficient TEM00-mode pico-second laser at 1.06 mu m with optical conversion efficiency greater than 20%. When the SHB effect is enhanced by decreasing the separation between the input end mirror and the composite gain medium, it is experimentally found that not only the pulse duration monotonically decreases, but also the temporal behavior gradually displays a narrow-peak-on-a-pedestal shape for the Nd:YVO4/Nd:LuVO4 scheme, while the multipulse operation can be obtained for the Nd:YVO4/Nd: KGW configuration. These phenomena are further explored by numerically simulating mode-locked pulses from the experimentally measured optical spectra. (C) 2014 Chinese Laser Press
URI: http://dx.doi.org/10.1364/PRJ.2.000161
http://hdl.handle.net/11536/124745
ISSN: 
DOI: 10.1364/PRJ.2.000161
期刊: PHOTONICS RESEARCH
起始頁: 161
結束頁: 167
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