CAJ | 학술논문

采用渐变折射率分别限制单量子阱宽波导结构,通过降低非辐射复合、有源层载流子泄露、散射和吸收损耗来提高出射效率和降低激光阈值电流,从而提高半导体激光器阵列的输出功率;同时使P面具有更高的粒子掺杂数密度,优化N面合金条件,降低半导体激光器的串联电阻,降低焦耳热,提高了半导体激光器阵列的转换效率.利用金属有机化学气相淀积技术生长GaInAsP/InGaP/AlGaAs渐变折射率分别限制单量子阱宽波导结构激光器材料,利用该材料制成半导体激光线阵列在20%高占空比的输入电流下,半导体激光器的输出峰值功率达到189.64 W(180 A),斜率效率为1.1 W/A,中心波长为805.0 nm,阈值电流为7.6 A,电光转换效率最高可达55.4%;在1%占空比的输入电流下,阵列的输出峰值功率可达324.9 W(300 A),斜率效率为1.11 W/A,阈值电流为7.8 A,电光转化效率最高达55.6%,中心波长为804.5 nm.
채용점변절사솔분별한제단양자정관파도결구,통과강저비복사복합、유원층재류자설로、산사화흡수손모래제고출사효솔화강저격광역치전류,종이제고반도체격광기진렬적수출공솔;동시사P면구유경고적입자참잡수밀도,우화N면합금조건,강저반도체격광기적천련전조,강저초이열,제고료반도체격광기진렬적전환효솔.이용금속유궤화학기상정적기술생장GaInAsP/InGaP/AlGaAs점변절사솔분별한제단양자정관파도결구격광기재료,이용해재료제성반도체격광선진렬재20%고점공비적수입전류하,반도체격광기적수출봉치공솔체도189.64 W(180 A),사솔효솔위1.1 W/A,중심파장위805.0 nm,역치전류위7.6 A,전광전환효솔최고가체55.4%;재1%점공비적수입전류하,진렬적수출봉치공솔가체324.9 W(300 A),사솔효솔위1.11 W/A,역치전류위7.8 A,전광전화효솔최고체55.6%,중심파장위804.5 nm.
808 nm high duty-cycle high power semiconductor laser array was studied. Gradient refraction index separate confinement hetero-structure single quantum well broad waveguide structure(GRIN-SCH-SQW-BW) was adopted to reduce the non-radiation compound, the active layer carrier leakage, and the scattering and absorption loss. Meanwhile, it enables high doping of the P side and optimization of N side alloy conditions, which reduce the laser diode series resistance, thereby reduce the joule heat and raise the output power of the laser diode. GaInAsP/InGaP/AlGaAs GRIN-SCH-SQW-BW epilayers were grown by low pressure metal organic chemical vapor deposition(MOCVD) on N-type GaAs substrate, laser diode array was fabricated using the material. The output power of laser diode array is up to 189.64 W at 180 A and 20% duty cycle, the slope efficiency is as high as 1.1 W/A, the central wavelength is 805.0 nm and the highest wall plug efficiency is 55.4%; the output power of laser diode array is up to 324.9 W at 300 A and 1% duty cycle, the slope efficiency is as high as 1.11 W/A, the central wavelength is 804.5 nm and the highest wall plug efficiency is 55.6%.