论文标题
步进高岭波导MQW极化模式转换器单层与侧壁光栅DFB激光器
Stepped-height ridge waveguide MQW polarization mode converter monolithically integrated with sidewall grating DFB laser
论文作者
论文摘要
我们报告了使用相同的外延层方案单片与侧壁光栅分布式反馈（DFB）激光器单片集成的1555 nm步进高岭波导极化模式的首次演示。该设备显示稳定的单个纵向模式（SLM）操作，其输出灯从TE转换为TM极化，效率在宽范围的DFB注入电流（IDFB）上从140 mA到190 mA，效率> 94％。在IDFB = 180 MA处获得最高的TM模式纯度为98.2％。该设备的一个特殊优势是，整个集成装置制造只需要一步的金属蒸气外观和III-V材料干蚀刻的两个步骤，从而大大降低了复杂性和成本。
We report the first demonstration of a 1555 nm stepped-height ridge waveguide polarization mode converter monolithically integrated with a side wall grating distributed-feedback (DFB) laser using the identical epitaxial layer scheme. The device shows stable single longitudinal mode (SLM) operation with the output light converted from TE to TM polarization with an efficiency of >94% over a wide range of DFB injection currents (IDFB) from 140 mA to 190 mA. The highest TM mode purity of 98.2% was obtained at IDFB=180 mA. A particular advantage of this device is that only a single step of metalorganic vapor-phase epitaxy and two steps of III-V material dry etching are required for the whole integrated device fabrication, significantly reducing complexity and cost.
