Proximity sensors based on ball-lensed optical fibers

39th International Microelectronics and Packaging IMAPS Poland 2015 Conference

无线电电子学

Guzowski, B.^1 ; Lakomski, M.^1 ; Cywinski, M.^1

Dept. of Semiconductor and Optoelectronics Devices, Technical University of Lodz, ul. Wolczanska 211/215, Lodz

90-924, Poland^1

关键词: 1550 nm;    Refractive surfaces;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/104/1/012031/pdf
DOI  :  10.1088/1757-899X/104/1/012031

来源: IOP

【 摘 要 】

In this paper, proximity sensors based on ball-lensed single-mode fibers (SMF) are described. Two types of sensors are presented: (1) Type A with one transmitting and four receiving optical fibers and (2) Type B with one transmitting and eight receiving optical fibers. In both types ball-lensed optical fibers are used as a receiving line. Sensitivity of these sensors is compared to sensitivity of sensors with the same configurations, but involving cleaved optical fibers. All developed sensors were tested at two most popular in SMF wavelengths: 1310 nm and 1550 nm. As a refractive surface the silicon wafer was used.