Compact InAs Quantum Dot Multilayers Realizing High-Power Lasers

【摘要】 <正>Utilizing quantum dots (QDs) as a gain medium to achieve ultra-high optical output at telecommunication wavelengths remains a persistent goal. In this work, we present an approach to enhance optical gain while maintaining a compact active region, suitable for high-power QD lasers operating at a wavelength of 1.31??m. By reducing the growth temperature of In As QDs in the latter layers, compact 12-layer QDs with high density and photoluminescence intensity are achieved.更多还原