Wavelength and intensity switching in directly coupled semiconductor microdisk lasers.
Wavelength and intensity switching in directly coupled semiconductor microdisk lasers.
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DOI：
10.1364/ol.33.000605
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发表时间：
2008-03
期刊：
影响因子：
3.6
通讯作者：
G. Fernandes;L. Guyot;G. Chern;M. Kneissl;N. Johnson;Q. Song;Lei Xu;R. Chang
中科院分区：
文献类型：
--
作者：
G. Fernandes;L. Guyot;G. Chern;M. Kneissl;N. Johnson;Q. Song;Lei Xu;R. Chang
我们展示了一个由一个螺旋微盘和两个半圆形微盘组成的三元件直接耦合微盘器件的输出波长和强度开关。所使用的无间隙耦合机构允许单个元件实现激光，同时实现相邻微盘之间的最佳光功率转移。通过注入电流控制中心元件的透明度，可以允许边缘元件交换其放大的自发辐射。以这种方式，可以实现输出强度的通-断-通开关以及输出波长的不连续移位，作为增加注入电流的函数。
We demonstrate output wavelength and intensity switching in a three-element directly coupled microdisk device consisting of one spiral microdisk coupled to two semicircle microdisks. The gapless coupling mechanism used allows individual elements to achieve lasing while achieving optimal transfer of optical power between adjacent microdisks. By controlling the transparency of the center element via injection current, the edge elements can be allowed to exchange their amplified spontaneous emission. In this manner, on-off-on switching of the output intensity, as well as discontinuous shifts in the output wavelength, can be achieved as a function of increasing injection current.