高功率1060 nm锥形激光器  

High Power 1060 nm Tapered Laser

作　　者：张娜玲 井红旗[1] 袁庆贺 吕家纲 王翠鸾[1] 仲莉[1] 刘素平[1] 马骁宇[1,2] Zhang Naling;Jing Hongqi;Yuan Qinghe;Lv Jiagang;Wang Cuiluan;Zhong Li;Liu Suping;Ma Xiaoyu(National Engiyieering Research Center for Optoelectronic Devices,bistitute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院半导体研究所光电子器件国家工程研究中心,北京100083 [2]中国科学院大学材料科学与光电技术学院,北京100049

出　　处：《光学学报》2022年第5期137-142,共6页Acta Optica Sinica

摘　　要：为提高1060 nm锥形激光器的输出性能,对1060 nm锥形激光器的脊形波导区和锥形增益区长度进行了优化。当保持总腔长3 mm不变时,设置脊形波导区长度为500,750,1000μm。在输出功率为2 W时,对三种情况所需的输入电流、功率-电流曲线斜率效率、电光转换效率、输出光谱及远场特性进行了对比。研究结果表明,当脊形波导区长度为750μm,锥形增益区长度为2250μm时,1060 nm锥形激光器的输出性能最优。当输出功率为2 W时,所需输入电流为3.95 A,斜率效率为0.61 W/A,转换效率为33.9%,光谱宽度(半峰全宽)为0.3 nm,远场近似高斯分布且95%能量处的水平发散角约为14°。The lengths of the ridge waveguide(RW) region and the tapered gain region of a 1060 nm tapered laser are optimized for better output performance of such lasers. When the total length of the cavity is kept at 3 mm, the length of the ridge RW region is set to 500, 750, and 1000 μm. When the output power is 2 W, the required input currents, slope efficiencies of power-current curves, electro-optical conversion efficiencies, output spectra, and far-field characteristics of the three lasers are compared. The results show that the output performance of the 1060 nm tapered laser is best when the length of the RW region is 750 μm and that of the tapered gain region is 2250 μm. Under an output power of 2 W, the required input current is 3.95 A, the slope efficiency is 0.61 W/A, and the conversion efficiency is 33.9%,the width(full wave at half maximum) of the spectrum is 0.3 nm, the far field is approximately Gaussian distribution, and the horizontal divergence angle is about 14° at energy of 95%.

关 键 词：激光器 锥形激光器 脊形波导 1060 nm 输出性能 

分 类 号：TN248.4[电子电信—物理电子学]