Unidirectional single-frequency lasing from a ring-spiral coupled microcavity laser
Unidirectional single-frequency lasing from a ring-spiral coupled microcavity laser
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DOI：
10.1063/1.2961025
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发表时间：
2008-08
影响因子：
4
通讯作者：
Xiang Wu;Hao Li;Liying Liu;Lei Xu
中科院分区：
文献类型：
--
作者：
Xiang Wu;Hao Li;Liying Liu;Lei Xu
研制了一种环形-螺旋耦合微腔激光器。环形谐振器作为振荡器工作，其直径略小于螺旋腔的直径。该螺旋提供波长选择性反馈并从凹口发射光。结果，耦合腔产生单向单频激光发射。其激射阈值也明显低于单个螺旋形微腔激光器。
A ring-spiral coupled microcavity laser was fabricated. The ring resonator works as an oscillator and has a diameter that is slightly less than that of the spiral cavity. The spiral provides wavelength selective feedback and emits light out from the notch. As a result, the coupled cavity generates unidirectional single-frequency laser emission. Its lasing threshold is also significantly lower than a single spiral-shaped microcavity laser.