Abstract
Using quantum dots (QDs) as gain medium for semiconductor laser, theory has predicted excellent properties such as low laser thresholds or broad gain spectra [1]. Especially microdisk structures and microcavities, for example vertical-cavity surface-emitting laser (VCSEL), provide very low threshold operation in the sub-milliampere regime [2] and smallest sensitivity of wavelength and threshold current changes with temperature if QDs were used [3]. For various applications, as for emitters for on-board interconnects or polymer optical fiber communication, it is preferable to operate at short wavelength, especially in the red spectral range.
© 2009 IEEE
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