Power Dependent Measurements of the Emission Bandwidth of a Vertical-External-Cavity Surface-Emitting Laser Driven Terahertz Source

被引：0
|
作者：
Wichmann, Matthias [1 ,2 ]
Moeller, Christoph [1 ,2 ]
Stein, Markus [1 ,2 ]
Rahimi-Iman, Arash [1 ,2 ]
Koch, Stephan W. [1 ,2 ]
Stolz, Wolfgang [1 ,2 ,3 ]
Koch, Martin [1 ,2 ]
机构：
[1] Univ Marburg, Dept Phys, Renthof 5, D-35032 Marburg, Germany
[2] Ctr Mat Sci, D-35032 Marburg, Germany
[3] NAsP III V GmbH, D-35041 Marburg, Germany
来源：
2014 39TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2014年
关键词：
SPECTROSCOPY;
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We investigate the pump-power dependent emission bandwidth of a CW THz emitter which is based on intra-cavity difference frequency generation in a two-color vertical-external-cavity surface-emitting laser. Two Michelson interferometers are employed to investigate the two color laser output and the originating CW THz signal, respectively. This allows a study of the optical modes which contribute to the THz signal. We find that the THz emission bandwidth is strongly depending on the pump power and shows a clear correlation with the number of involved optical modes.
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