Research on a method for on-line monitoring the power in microstructure fiber core based on machine vision

摘要：

The special waveguide structure of microstructure fiber prevents the realization of high efficiency coupling connection, so the manufacture of couplers and process monitoring will become the key technology of production of fiber devices. In order to realize monitoring the light power in the fiber core and controlling the coupling ratio when the microstructure fiber is in the process of fused biconical taper, this paper puts forward a real-time monitoring method based on microscopic imaging technique and DSP technique, this method realizes the positioning of each fiber core and the measurement of output fields optical power by using the CMOS camera with microscope to real-time monitor the optic fiber end and designing image processing algorithm about recording the most largest range of light, judging the characteristic region and data of normalization processing etc in FPGA and DSP, thereby the speed and the time of the fused biconical tapering fiber can be controlled. The results show that this method can complete the rapid detection of each fiber cores optical power; the top treatment frame rate can reach 50 fps. This method also solves the problem of on line realtime monitoring during the fused tapering optical fiber well.

关键词： DSP microscopic imaging fused tapering optical fiber light power in fiber core real-time monitoring

作者: Tao Geng Haitao Chen Junqiang Diao

作者单位: College of Science Harbin Engineering University Harbin, China

会议类型: 国际会议

会议名称: 2012 International Conference on Measurement,Information and Control(2012测量、信息与控制国际会议 ICMIC2012)

会议地点: 哈尔滨

会议语种:英文

页码: 927-930

在线出版日期: 2012-05-18（万方平台首次上网日期，不代表论文的发表时间）