Sains Malaysiana 39(3)(2010): 459–466

Fabrikasi dan Pencirian Pencerai Optik 1´12 Buatan Tangan Berasaskan Gentian Optik Polimer Diperbuat daripada Polimetil Metakrilat

(Fabrication and Characterization of Hand-Made 1´12 Splitter Based on Polymer Optical Fiber Made of Polymethyl Methacrylate)

Mohd Syuhaimi Ab-Rahman, Hadi Guna*, Mohd Hazwan Harun & Kasmiran Jumari

Spectrum Technology Research Group, Fakulti Kejuruteraan & Alam Bina

 Universiti Kebangsaan Malaysia 43600 UKM Bangi, Selangor D.E., Malaysia

Received: 4 March 2009 / Accepted: 2 Mei 2009

ABSTRAK

Kajian ini dijalankan untuk membangunkan pencerai optik 1´12 berasaskan gentian optik polimer (POF) diperbuat daripada polimetil metakrilat (PMAA) sebagai media penghantar isyarat optik berprestasi tinggi. Pada asasnya, peranti optik ini mempunyai 1 pangkalanPOF masukan dan 12 pangkalanPOF keluaran dalam bentuk gentian terberkas. Banyak sistem yang menggandingkan atau menceraikan isyarat optik menerusi beberapa saluran yang berbeza-beza, yang masingmasing mempunyai kekangan yang tersendiri telah dipasarkan. Walau bagaimanapun, teknologi tersebut terlalu mahal untuk digunakan pada beberapa aplikasi tertentu. Tujuan utama peranti buatan tangan ini ialah untuk membangunkan pencerai optik berkos rendah menggunakanPMMA-POF bagi aplikasi pelbagai guna. Pengganding disuntik dengan diod pemancar cahaya (LED) berwarna merah dengan panjang gelombang 650 nm bagi menganalisis kecekapan kuasa pengganding. Kecekapan yang diperolehi mencapai sehingga 80% kuasa isyarat optik yang merentasi pencerai optik tersebut. Prestasi bagi pencerai optik buatan tangan ini masih dapat diperbaiki melalui latihan yang berterusan.

Kata kunci: Gentian optik polimer; pencerai optik; polimetil metakrilat

ABSTRACT

This research was conducted to develop a 1×12 optical splitter based on polymer optical fiber (POF) made from polymethyl methacrylate (PMMA) material as a high efficiency optical signal transmission medium. Basically, the optical device has 1 POF input port and 12 POF output ports in a bundled fiber form. There are several system available in the market which are able to split or couple optical signals transmitted into some different channels, which are all afflicted with certain constrains. However, these systems are too expensive for most applications. The goal of this research was to develop an economical splitter for multi-purpose application over PMMA-POF. Red LED with 650 nm wavelength was injected into the splitter with the aim to analyze the power efficiency of the splitter. A coupling efficiency of 80% was demonstrated. The performance of these hand-made splitters can be improved gradually through experience and practice.

Keywords: Optical splitter; polymer optical fiber; polymethyl methacrylate  

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*Corresponding author; email: hadi_guna87@yahoo. com