Dual-wavelength InAlGaAs-InP laterally coupled distributed feedback laser
Dual-wavelength InAlGaAs-InP laterally coupled distributed feedback laser
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DOI：
10.1109/lpt.2006.887205
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发表时间：
2006-11-01
影响因子：
2.6
通讯作者：
Sorel, Marc
中科院分区：
文献类型：
--
作者：
Pozzi, Francesca;De La Rue, Richard M.;Sorel, Marc
报道了一种新型双波长横向耦合分布反馈半导体激光器的设计和工作。激光器具有两个不同的光栅周期，每个侧壁上一个。稳定的双模发射，具有低阈值电流和良好的消光比接近30 dB，已被证明。通过光混频产生毫米波信号已经被执行，并且每个单独的模式和拍频模式的线宽已经被测量为注入电流的函数。据观察，而单独的模式的线宽具有适度的依赖于注入水平，拍频模式的线宽经历了强烈的下降，注入电流的增加。
The design and operation of a novel dual-wavelength laterally coupled (LC) distributed feedback (DFB) semiconductor laser are reported. The laser has two different grating periods, one on each sidewall. Stable dual-mode emission, with low threshold currents and good extinction ratio approaching 30 dB, has been demonstrated. Generation of millimeter-wave signals by photomixing has been performed, and the linewidths of each of the individual modes and of the beat mode have been measured as a function of the injection current. It is observed that while the linewidth of the separate modes has a modest dependence on the injection level, the linewidth of the beat mode experiences a strong decrease as the injected current increases.