Emission performance of optical fibre dissolved oxygen sensor using various optical fibre materials and parameters

We demonstrate the performance of optical fibre dissolved oxygen (DO) sensor when subject to different core material and sizes. It was found that fluorescence emission from oxygen sensitive material coated at the end-face of an optical fibre DO sensor varies with core material and sizes. Glass core optical fibre provides higher emission when compared to plastic core optical fibre. Using glass core optical fibre, up to 20 meter of optical fibre length can be achieved compared to other reported work.