采用窄带滤光片作为选频元件对精确波长激光器高频调制特性进行了小信号分析。
The small signal analysis for high frequency modulation characteristics of specific wavelength laser diode with narrowband filter was presented.
但由于产生窄带光源的反馈式激光器造价很高，因此没能够得到实际应用。
Feedback laser which generates narrow band light source for the Optical fiber gas sensor is too expensive to be used in engineering.
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