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光纤陀螺用关键器件之一是超辐射发光二极管（ＳＬＤ）。采用ＳＬＤ作为光源，光纤陀螺可达到高精度、高灵敏度、高稳定性、低噪声的目的。ＳＬＤ是一种以内部单程增益为特征的光发射器件。表征器件性能的主要技术参数指标是输出功率和光谱宽度。通过理论分析和实验，确定了器件的结构，在研制过程中解决了外延生长、端面镀膜等关键技术。组件采用１４针双列直插式管壳、标准单模光纤耦合封装。组件包括ＳＬＤ、光监视用ＰＩＮ光探测器、热敏电阻和半导体致冷器，可通过外电路对组件实现温控、光控，以便组件能长期稳定工作。组件尾纤输出功率大于３００μＷ，最大超过７００μＷ，光谱宽度大于３０ｎｍ。
One of the key devices for fiber optic gyros is a superluminescent diode (SLD). SLD as a light source, fiber optic gyroscope can achieve high precision, high sensitivity, high stability, low noise purposes. SLD is a light emitting device characterized by an internal one-way gain. The main technical parameters that characterize device performance are output power and spectral width. Through theoretical analysis and experiment, the structure of the device is confirmed, and the key technologies such as epitaxial growth and end-face coating are solved in the process of development. Components using 14-pin dual in-line package, the standard single-mode fiber-coupled package. Components include SLDs, PIN photodetectors for optical monitoring, thermistors, and semiconductor coolers that allow temperature and light control of the components through external circuitry so that the components can operate for long periods of time. Component pigtail output power of more than 300μW, the largest over 700μW, spectral width greater than 30nm.