| Title |
Estimation of Spatial Variations in a Light Source by Optical Fiber Sensory System |
| Authors |
김지선(Kim, Ji-Sun) ; 정구인(Jung, Gu-In) ; 이태희(Lee, Tae-Hee) ; 최주현(Choi, Ju-Hyeon) ; 오한별(Oh, Han-Byeol) ; 김아희(Kim, A-Hee) ; 박희정(Park, Hee-Jung) ; 김경섭(Kim, Kyung-Seop) ; 전재훈(Jun, Jae-Hoon) |
| DOI |
https://doi.org/10.5370/KIEE.2013.62.9.1283 |
| Keywords |
Optical fiber ; Beam profile ; Tip angle ; Position measurement ; LED |
| Abstract |
The purpose of this study is to find the new method for estiming the spatial variations in a light source with utilizing the optical fiber sensory system. With this aim, firstly the asymmetry in the beam profile of a light source is evaluated by using the tipped optical fiber with 0, 10, 20, 30, 40, 45-degree angle. Secondly the variation of position in a light source is estimated by adjusting the relative position between the light source unit (XYZ stage, LED, Optical fiber) and the receiver unit (Photodiode, XYZ stage). Our experimental results show that the spatial variation of a light source can be resolved in terms of the variations in beam profile with varying the tip angle of an optical fiber and adjusting the relative distance between the light source unit and the receiver. |