THz wave generation using frequency stabilized laser diodes

被引：0
|
作者：
Minamisawa, Yasuhito [1 ]
Nimonji, Tosiya [1 ]
Nakano, Kenji [1 ]
Sato, Takashi [2 ]
Ohkawa, Masashi [2 ]
机构：
[1] Niigata Univ, Grad Sch Sci & Technol, CO Sato Lab, Ikarashi 2 No Cho, Niigata 9502181, Japan
[2] Niigata Univ, Fac Engn, Niigata 9502181, Japan
来源：
PHYSICS AND SIMULATION OF OPTOELECTRONIC DEVICES XX | 2012年 / 8255卷
关键词：
laser diode; oscillation frequency; stabilization; Rb absorption line; generation of THz wave; LINE; RB;
D O I：
10.1117/12.908275
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：
A laser diode (LD) has been used in many areas, such as optical communication systems. However, its oscillation frequency changes, with variations in ambient temperature and injection current, so its frequency stabilization is of vital importance. In these situations, Rb saturated absorption spectroscopy is the method of choice. We use the beat signal, both for the purpose of evaluating frequency stability between two independently stabilized LDs, and for generating THz waves. This work shows a basic experiment using our beat signal observation, by high-speed photodetector. In addition, we have also used a frequency-stabilized etalon, to improve frequency selectivity.
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页数：8
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