本文提出将热释电探测器作为光电检测应用于光纤损耗谱特性测量系统中,并已研制成实用装置。它与其它检测方法相比,具有光谱响应平坦、线性好、可测量波长范围宽、能延伸到远红外区等优点。另外,配备了单板机进行自动扫描测量和数据处理,可绘制成光纤损耗谱特性曲线图。 This paper presents the pyroelectric detector as a photoelectric detection of optical fiber loss spectrum measurement system, and has been developed into a practical device. Compared with other detection methods, it has the advantages of flat spectral response, good linearity, wide measurable wavelength range and extended to far infrared range. In addition, equipped with a single-board machine for automatic scanning measurements and data processing, can be drawn into the fiber loss spectrum characteristic curve.