SLD light source automatic filtering system

Abstract

The invention provides a concrete implementation method of an automatic filtering system of SLD light sources, which comprises the following steps: firstly, a collecting control unit is used for controlling a light source drive unit to provide multi-way drive current and temperature-controlled current to the multiple filtered SLD light sources; secondly, an optical power measuring unit is used for measuring optical power that is output by the multiple SLD light sources; finally, the collecting control unit is used for collecting measured data that is obtained by the optical power measuring unit. Therefore, the integrity degree and the automation degree of the filtering can be improved, and as the multiple SLD light sources can be filtered simultaneously, the filtering efficiency of the SLD light sources is effectively improved, and the filtering number in one time is increased; furthermore, the specific collecting control unit is used for collecting data in the filtering process, thus leading the data acquisition to be more complete and accurate, and improving the system performance.

Description

technical field [0001] The invention relates to the technical field of SLD light sources, in particular to an automatic screening system for SLD light sources. Background technique [0002] At present, fiber optic gyroscope has become the mainstream gyroscope in the field of inertial technology, and has been successfully applied in many occasions. One of the more critical devices in the fiber optic gyroscope is the superluminescent light-emitting diode (SLD) light source, which is similar to the semiconductor laser light source and is a semiconductor light source between the laser diode (LD) and the light-emitting diode (LED). Since fiber optic gyroscopes are currently widely used in the military field, the requirements for their quality and reliability are relatively high. In this way, in the process of engineering production, it is necessary to screen the environmental stress of its key components, such as the SLD light source, to eliminate the existing quality Unqualifie...

AI Technical Summary

Problems solved by technology

However, the current optical power meter is expensive and poorly targeted, which causes a waste of resources, and restricts the number of SLD light sources to be screened in a screening process, and the screening efficiency is low; in addition, because the above operations need to be done manually, This increases the workload of the operator, and also increases the hidden danger of errors caused by human factors; at the same time, it is necessary to manually set up the driver, optical power meter or temperature box, and each test equipment is independent. This will cause inconvenient use and low integration; and because the test data needs to be recorded manually, only the data before and after the screening can be recorded, and the data during the screening cannot be recorded in time, resulting in the performance data of the SLD light source during the screening process. Insufficient acquisition affects the comprehensiveness and accuracy of performance data

Images