光谱线宽 meaning in Chinese

linewidth
spectral line width

For our laboratory is changing toward industrialization , a lot of work on conventional ingaas / gaas / algaas quantum well laser has been done . how the parameters , such as threshold current density , slope efficiency , fwhm and spectrum width , are influenced and how much the influence is , are discussed by the numbers . the effective means how to improve a certain performance parameter are purposed too
由于本实验室正处于由试验研究向产业化迈进的阶段，针对常规ingaas / gaas / algaas量子阱激光器做了很多工作，文中系统论述了常规量子阱激光器的各项性能参数?阈值电流密度、斜率效率、远场发散角、光谱线宽等的影响因素及改进的有效办法，并针对激光器p ? i线性度不好、远场发散角出现多瓣的现象，通过理论分析找出原因所在并进行了改进，有效解决了以上问题。