Injection locked multi-section gain-coupled dual mode DFB laser for terahertz generation
Injection locked multi-section gain-coupled dual mode DFB laser for terahertz generation
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DOI：
10.1016/j.optcom.2007.03.001
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发表时间：
2007-07-01
影响因子：
2.4
通讯作者：
Li, Guifang
中科院分区：
文献类型：
--
作者：
Al-Mumin, Mohammed;Kim, Cheolhwan;Li, Guifang
采用双模多段增益耦合分布反馈激光器实现了0.315THz的亚谐波注入锁定。注入的信号由一个光学梳与谐波35 GHz的间隔和带宽约1.9太赫兹。光梳是高非线性色散位移光纤中强四波混频的结果。为了观察多段激光器的锁定，使用相同的光梳将输出光下变频到RF频率。锁定的多段DFB激光器是适用于连续波太赫兹产生系统的相干可调谐光源。(c)2007 Elsevier B.V.保留所有权利。
A dual mode multi-section gain-coupled distributed feedback laser with tunable mode spacing is subharmonically injection locked at 0.315 THz. The injected signal consists of an optical comb with harmonics 35 GHz apart and a bandwidth of approximately 1.9 THz. The optical comb is a result of strong four-wave mixing in a highly-nonlinear dispersion-shifted fiber. In order to observe locking of the multi-section laser, the output is optically downconverted to RF frequencies using the same optical comb. The locked multi-section DFB laser is a coherent and tunable optical source suitable for continuous-wave terahertz generation systems. (c) 2007 Elsevier B.V. All rights reserved.