为了测量两种有源区材料半导体激光器的温度灵敏度,文中对In Ga As P/Ga As无铝和Al Ga In As/Al Ga As/Ga As有铝的808 nm大功率半导体激光器,采用阈值电流法衡量两种有源区材料激光器的特征温度。在各种温度下实验性地测量激光器的P-...为了测量两种有源区材料半导体激光器的温度灵敏度,文中对In Ga As P/Ga As无铝和Al Ga In As/Al Ga As/Ga As有铝的808 nm大功率半导体激光器,采用阈值电流法衡量两种有源区材料激光器的特征温度。在各种温度下实验性地测量激光器的P-I曲线,并采用线性拟合法得到阈值温度线性关系,实验结果表明有铝激光器温度性能明显优于无铝激光器。展开更多
介绍了无铝激光器的优点 ,利用 L P- MOVPE生长出宽波导有源区无铝 SCH- SQW结构激光器 .该结构采用宽带隙 In Ga Al P作限制层 ,加宽的 In Ga P作波导层 ,增加对载流子和光子的限制作用 ,以克服有铝激光器易氧化和全无铝激光器载流子...介绍了无铝激光器的优点 ,利用 L P- MOVPE生长出宽波导有源区无铝 SCH- SQW结构激光器 .该结构采用宽带隙 In Ga Al P作限制层 ,加宽的 In Ga P作波导层 ,增加对载流子和光子的限制作用 ,以克服有铝激光器易氧化和全无铝激光器载流子易泄漏的缺点 .制作的条宽 10 0 μm、腔长 1mm的激光器 (腔面未镀膜 ) ,激射波长为831nm,室温连续输出光功率达 1W.展开更多
By etching a second-order grating directly into the Al-free optical waveguide region of a ridgewaveguide(RW) AlGaInAs/AlGaAs distributed feedback(DFB) laser diode,a front facet output power of 30mW is obtained at ...By etching a second-order grating directly into the Al-free optical waveguide region of a ridgewaveguide(RW) AlGaInAs/AlGaAs distributed feedback(DFB) laser diode,a front facet output power of 30mW is obtained at about 820nm with a single longitudinal mode. The Al-free grating surface permits the re-growth of a high-quality cladding layer that yields excellent device performance. The threshold current of these laser diodes is 57mA,and the slope efficiency is about 0.32mW/mA.展开更多
文摘为了测量两种有源区材料半导体激光器的温度灵敏度,文中对In Ga As P/Ga As无铝和Al Ga In As/Al Ga As/Ga As有铝的808 nm大功率半导体激光器,采用阈值电流法衡量两种有源区材料激光器的特征温度。在各种温度下实验性地测量激光器的P-I曲线,并采用线性拟合法得到阈值温度线性关系,实验结果表明有铝激光器温度性能明显优于无铝激光器。
文摘介绍了无铝激光器的优点 ,利用 L P- MOVPE生长出宽波导有源区无铝 SCH- SQW结构激光器 .该结构采用宽带隙 In Ga Al P作限制层 ,加宽的 In Ga P作波导层 ,增加对载流子和光子的限制作用 ,以克服有铝激光器易氧化和全无铝激光器载流子易泄漏的缺点 .制作的条宽 10 0 μm、腔长 1mm的激光器 (腔面未镀膜 ) ,激射波长为831nm,室温连续输出光功率达 1W.
文摘By etching a second-order grating directly into the Al-free optical waveguide region of a ridgewaveguide(RW) AlGaInAs/AlGaAs distributed feedback(DFB) laser diode,a front facet output power of 30mW is obtained at about 820nm with a single longitudinal mode. The Al-free grating surface permits the re-growth of a high-quality cladding layer that yields excellent device performance. The threshold current of these laser diodes is 57mA,and the slope efficiency is about 0.32mW/mA.