针对少模光通信需求,仿真设计并制作了一种基于压应变量子阱结构的少模激光器。通过调整工作电流,该器件可以实现基模和一阶模工作。利用该器件成功激发了少模光纤的LP01模和LP11模。这种器件制作方法简单、成本低、易于集成，可作为少模通信系统的光源，为空分复用系统中发射端的集成化提供了可能。

To meet the demand for the few-modes optical communication system, a few-mode semiconductor laser based on the compressive strain quantum well structure in InP/InGaAsP materials is designed and manufactured. The device can work in the fundamental mode and the 1st order lateral mode depending on the injection current level. The LP01 or the LP11 modes of a few mode fiber is successfully excited by the few-modes laser. The device is easy to be implemented with low production costs, which provides a new light source choice for few-modes optical communication system. Also this device gives a possibility to realize the integrated emitter in the space division multiplex system.