The experiments show that it can be used to filter a narrow bandwidth laser light to obtain a narrower outputspectrum.
初步实验表明，用它对窄带的光源进行滤波，可以获得线宽更窄的光谱。
2
Based on the ray trace method, an expression for outputspectrum of the two-segment semiconductor lasers has been derived.
用射线法导出了两段式半导体激光器的端面输出谱。
3
The outputspectrum of FBG-ECL in different peak reflectivity was practically measured. The result of experiment is accordant with theoretical analysis' conclusion.