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Tapered plastic optical fiber loop coated with ZnO nanorods using multiple channels for relative humidity sensing

Hisam Mohamad Noriszakiy, Rahim Hazli Rafis Abdul, Razak Hanim Abdul, Azmi Siti Nurhidayah, Johari Siti Halma, Jali Mohd Hafiz, Chaculi Siti Amaniah Mohd, Thokchome Siddarth, Muhammad Ahmad Razif, Harun Sulaiman Wadi

Przegląd Elektrotechniczny

2022

R. 98, nr 4

72--76

To utilize the evanescent wave on a plastic optical fiber (POF), a humidity sensor was fabricated based on a tapered POF with a loop shape and coated with zinc oxide (ZnO) nanorods. The POF was tapered manually to a diameter of 0.90 mm by using the polishing method. ZnO nanorods were synthesized using the hydrothermal method. The obtained results revealed that the increase in the length of the tapered POF loop coated with ZnO nanorod had provided an excellent sensing performance as an RH sensor in terms of sensitivity and repeatability properties.

Aby wykorzystać falę zanikającą na światłowodzie z tworzywa sztucznego (POF), wykonano czujnik wilgotności oparty na stożkowym POF w kształcie pętli i pokryty nanoprętami tlenku cynku (ZnO). POF zwężano ręcznie do średnicy 0,90 mm metodą polerowania. Nanopręty ZnO zsyntetyzowano metodą hydrotermalną. Uzyskane wyniki wykazały, że zwiększenie długości zwężającej się pętli POF pokrytej nanoprętem ZnO zapewniło doskonałe wyniki wykrywania jako czujnik wilgotności względnej pod względem czułości i właściwości powtarzalności.

Manufacturing methods for multi step index plastic optical fiber materials

Ferenets M., Myllymäki H., Grahn K., Sipilä A., Harlin A.

Autex Research Journal

2004

Vol. 4, no. 4

163--173

Plastic optical fibres (POF) are often used in telecommunication, consumer electronics and automotive applications. Measuring and control devices used for POF are already standardised procedures. To meet the requirements of the IEEE 1394 standard for data transfer rates up to 800Mbps requires increasingly improved performance of POF. POFs which offer high bandwidth, total electromagnetic immunity and simple handling are considered as an alternative to noisy copper cables (cat 5) and high performance glass optic fibres for of a data highway. The market requires a simple and inexpensive alternative that would not be a technical overkill. The target of the study carried out in the Institute of Fibre Materials Science at Tampere University of Technology was to evaluate manufacturing methods which would allow this. This is a summary article of the results of manufacturing step index and multi-step index POF by preform manufacturing followed by fibre drawing as well as the extrusion method.

Development of polymeric optical fibre fabrics as illumination elements and textile displays

Harlin A., Mäkinen M., Vuorivirta A.

Autex Research Journal

2003

Vol. 3, no. 1

1--8

Polymeric optical fibre (POF) is used for simple light guide and illumination applications. The polymer optical fibre materials can be utilised in flexible lighting elements which can be combined with textile structures. The POF woven fabrics are introduced as a flexible alternative to lighting elements. Various light-emitting woven fabric and light emission theories has been discussed. Simple poly-methyl-metacrylate PMMA and polycarbonate PC fibres have been produced experimentally through single-screw and conical extrusion. The fibre is integrated in woven structures by means of handloom, narrow fabric weaving and Jacquard technology. The manufacturing technology suitable for light- emitting textile applications and its opportunities in textile integration is discussed.