The results show that these newly made DFB-LDs have threshold current as low as 7mA, 35% lower than the former LPE-buried DFB-LDs.

• 测试结果显示:采用新工艺制作的DFB激光器的阈值电流较LPE掩埋的DFB激光器下降了35%25；达到7mA.