Optical in-well pumping of a vertical-external-cavity surface-emitting laser
Optical in-well pumping of a vertical-external-cavity surface-emitting laser
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垂直外腔表面发射激光器的光学井内泵浦
DOI：
10.1063/1.1760887
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发表时间：
2004
影响因子：
4
通讯作者：
E. Riis
中科院分区：
文献类型：
--
作者：
M. Schmid;S. Benchabane;F. Torabi;R. Abram;A. Ferguson;E. Riis
提出了一种垂直外腔面发射激光器的光抽运方案。该方案基于泵浦光在多量子阱增益结构的威尔斯阱内的吸收，而不是传统的在势垒区中吸收较短波长的方法。由808 nm光源泵浦的850 nm左右的激光器的操作证明了这种技术的潜力，该技术允许这些器件在显著更短的波长范围内操作，并且在该光谱区域中的器件具有高亮度泵浦激光器的特定应用。另一个优点是较小的量子缺陷，这导致增益介质的加热减少。实现这些优点的同时，保持高达18%的斜率效率，这是一个类似的增益介质与传统的泵浦方案获得的结果相媲美。
A scheme is demonstrated for optical pumping of a vertical-external-cavity surface-emitting laser. The scheme is based on absorption of the pump light within the wells of the multiple-quantum-well gain structure rather than the conventional approach of absorption of a shorter wavelength in the barrier regions. The operation of a laser around 850 nm pumped by an 808 nm source demonstrates the potential of this technique for allowing operation at a significantly shorter range of wavelengths for these devices in general and specific application of high-brightness pump lasers for devices in this spectral region. A further advantage is the smaller quantum defect which results in reduced heating of the gain medium. These advantages are achieved while maintaining a slope efficiency of up to 18%, which is comparable to results obtained with a traditional pumping scheme with a similar gain medium.