论文部分内容阅读
研制了一款大功率900 nm超大光腔三叠层隧道级联激光器。针对高功率900 nm隧道级联激光器存在的光学灾变损伤(COD)和工作电压高等问题,通过Lastip软件和波导模拟软件,设计并优化了900 nm超大光腔三叠层隧道级联激光器的材料结构。对比扩展波导激光器结构的性能,超大光腔结构提高了三叠层隧道级联激光器输出光功率,降低了工作电压。采用金属有机化学气相淀积(MOCVD)方法生长了900 nm三叠层隧道级联激光器材料,并制作成条宽200μm、腔长800μm的激光器芯片,采用金属管壳封装制成激光器单管。测试结果表明,室温下,在频率10 kHz、脉宽100 ns、工作电流30 A时,器件输出功率约85 W,室温条件下器件老化595 h,输出功率基本不降低。
Developed a high-power 900 nm large cavity triple-cascade tunnel cascaded lasers. Aiming at the problems of optical catastrophic damage (COD) and high working voltage of high power 900 nm cascade lasers, the material structure of the 900 nm cascade lasers is designed and optimized by Lastip software and waveguide simulation software . Comparing with the performance of extended waveguide laser structure, the large cavity structure improves the output optical power of triple-stack tunnel cascade laser and reduces the operating voltage. A 900 nm triple-layered tunnel cascade laser material was grown by MOCVD and fabricated into laser chips with a width of 200 μm and a cavity length of 800 μm. The test results show that the output power of the device is 85 W at room temperature under the frequency of 10 kHz, the pulse width of 100 ns and the operating current of 30 A, and the device aging is 595 h at room temperature. The output power is basically not reduced.