Saktioto Saktioto, Saktioto
Dept. of Physics FMIPA Universitas Riau

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Profile of Single Mode Fiber Coupler Combining with Bragg Grating Syahputra, Romi Fadli; Saktioto, Saktioto; Meri, Ros; Syamsudhuha, Syamsudhuha; Okfalisa, Okfalisa
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 15, No 3: September 2017
Publisher : Universitas Ahmad Dahlan

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This paper describes a numerical experiment of design and operation of a fiber coupler between single mode fiber and fiber Bragg grating (FBG). Both components are coupled depending with optical waveguide and source parameters. A characterization of fiber coupler is simulated by varying long grating of 10 mm to 60 mm using transfer matrix method based on coupled mode equation. The wave peak, transmission, and dispersion parameters are analyzed to determine the performance of the fiber coupler. The transmission spectrum showed the wave peaks rise to any increase in the grating length on channel 1 and channel 2. Transmission on channel 1 and channel 2 decreased from the wavelength range of 1.45μm–1.55μm and rised in the range of 1,55μm–1,65μm for each increment in length of grating. The dispersion showed the zero dispersion at specific wavelength for each increase in length of grating. This component can be applied for controlling information signal in wide range communication.
PEMBUATAN DAN KARAKTERISASI KARBON AKTIF DARI BAMBU BETUNG (DENDROCALAMUS ASPER) DENGAN AKTIVASI KOH BERBANTUAN GELOMBANG MIKRO Hutapea, Erin Mazelly; Iwantono, Iwantono; Farma, Rakhmawati; Saktioto, Saktioto; Awitdrus, Awitdrus
Komunikasi Fisika Indonesia Vol 14, No 2 (2017)
Publisher : Universitas Riau

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Activated carbon had successfully been made from betung bamboo (Dendrocalamus Asper) bycarbonization process for 1 hour with chemical activation using pottasium hydroxide (KOH) with themass ratio of the carbon powder with KOH i.e. 1:0, 1:1, 1:2 and 2:1. In order to activate the carbon,the activation was help by microwave irradiation with the power of 630 Watt for 20 minutes. Thepurpose of this research is to characterize activated carbon using X-ray diffraction (XRD), FourirerTransform Infrared Spectroscopy (FTIR) and absorption of methylene blue. The data of X-raydiffraction pattern indicated that all of the activated carbon were in a semi-crystalline form, with theXRD peaks observed at angel of diffraction (2θ) of 21.268o and 41.014o with oriented of (002) and(100) respectively. The highest value of layer (Lc) is resulted from the ratio 1:1 as high as 21.495 nmand this data supported by the highestabsorption of methylene blue at ratio 1:1 as high as 99.327mg/g. Characterization of FTIR showed that the activated carbon had the function of cluster –OH, CHand C=C. Overall the calculated and analyzed results showed that the variation of KOHconcentration influences the qualities of the activated carbon.
Ionisasi Gas Butana pada Metode Pelepasan Listrik Tegangan Searah dengan Ketidakmurnian Udara Tekanan Tinggi, Plasma Termal Husein, Ikhsan Rahman; Farma, Rakhmawati; Saktioto, Saktioto
Komunikasi Fisika Indonesia Vol 14, No 1 (2017)
Publisher : Universitas Riau

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Penelitian ini dilakukan untuk menjelaskan ionisasi gas butana dengan campuran udara padatekanan tinggi. Proses kelistrikan ini menggunakan elektroda grafit pensil yang digunakan untukmelucuti gas pembentukan plasma dengan metode electrical-discharge pada rentang tekananatmosfir. Plasma Karbon diproduksi dengan mengoperasikan tegangan (DC)<3,5kV danmengalirkan gas butana ke dalam tabung plasma. Hasil eksperimen menunjukkan tegangan jatuh danarus listrik. Tegangan dan arus listrik diperoleh sebelum dan sesudah terjadi breakdown. Densitasdan temperatur plasma Karbon dihitung dari arus listrik dan tegangan jatuh. Hasil eksperimenmenunjukkan ionisasi udara pada tekanan rendah memiliki tegangan maksimum 570V, teganganjatuh 530-570V dan arus listrik 0,27-0,45mA, sedangkan pada tekanan tinggi memiliki teganganmaksimum 1160V, tegangan jatuh 900-1100V dan arus 0,46-0,6mA. Ionisasi yang terjadi saatpenambahan gas butana (ketidakmurnian campuran udara) pada tekanan rendah memiliki teganganmaksimum 772V, tegangan jatuh 536-775V dan arus listrik 0,03-0,45mA, sedangkan pada tekanantinggi memiliki tegangan maksimum 1044V, tegangan jatuh 675-1055V dan arus listrik 0,03-0,69mA.Hasil data ini berhubungan dengan variasi distribusi gas yang berada didalam tabung. Hasileksperimen diharapkan dapat digunakan untuk pengembangan pertumbuhan Carbon Nano Tubepada ujung katoda.
EFEK WAKTU RENDAM AKTIVASI KIMIA BERBANTUAN GELOMBANG MIKRO TERHADAP SIFAT FISIKA KARBON AKTIF DARI KULIT BUAH JENGKOL (PITHECELOBIUM JIRINGA) Asra, Yurike; Iwantono, Iwantono; Saktioto, Saktioto; Farma, Rakhmawati; Awitdrus, Awitdrus
Komunikasi Fisika Indonesia Vol 14, No 2 (2017)
Publisher : Universitas Riau

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Activated carbon based on jengkol fruit shell at soaking times assisted pottasium hydroxide (KOH)activation by microwave has successfully been made, the ratio of carbon mass to KOH of 2:1. Thechemical activation soaking time was varied at 24 hours, 36 hours, and 48 hours. The aims of thisresearch was to study the effect of soaking time on the physical properties of activated carbon ofjengkol shell that represented by micro structure, surface area, adsorption, and chain structure ofactivared carbon. The micro structure pattens of samples were in semi-crystralline structure as thepresence of quite narrow 2 peaks at 2θ : 22,994o and 42,102o representing the crystal orientation of(002) and (100). The highest of stack height (Lc) was produced from the sample with soaking times 24hours which was 1,773 nm, with surface area of 124,50 m2/g. The adsorption of methylen blue was ashigh as 99,569mg/g and chain stucture of activated carbon based on jengkol shell was obtainedfunction group of C-H, C-C, C=O, and C-O at wave number of 2943,43 cm-1, 2369,65 cm-1, 1612,56cm-1 and 1160,23 cm-,1 respectively.
Karakteristik Pertumbuhan Pelepah Kelapa Sawit dengan Menggunakan Fiber Bragg Grating Moda Tunggal Sutriyono, Didik Puji; Saktioto, Saktioto
Komunikasi Fisika Indonesia Vol 14, No 1 (2017)
Publisher : Universitas Riau

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Penentuan pertambahan panjang pelepah sawit dapat menggunakan Fiber Bragg Grating (FBG)modatunggal dengan sumber daya input 1mW pada panjang gelombang 1550. Perlakuan FBG dilakukanpada kelapa sawit yang berumur 6 bulan 2 sampel dan 1 tahun 2 sampel. Karakteristik yangdihasilkannya yaitu: adanya sampel yang sama dalam peningkatan pertumbuhan panjang pelepahsawit secara alami yaitu sampel A dan D, sedangkan sampel B dan C terjadi fluktuasi pembacaanpada alat ukurnya. Pertambahan panjang maksimal diperoleh pada sampel C pada pengukuran hari ke-5 yaitu 627173.274 nm sedangkan pertambahan panjang minimum diperoleh pada sampel C padapengukuran hari ke-2 yaitu 582455.966 nm. Perubahan panjang gelombang negatif dialami sampel Bpada pengukuran hari ke-2, ke-5, ke-8 dan ke-14 yaitu –0,049927414 nm; –0,2033673 nm; –0,194798635 nm; dan –0,18501825 nm. Sampel C juga mengalami perubahan panjang gelombangpada pengukuran hari ke-5, ke-33, ke-36 dan ke-42 yaitu –0,284538013 nm; – 0,019009783 nm; –0,018772398 dan –0,031391469 nm. Pendekatan Persamaan garis y = ae-bx, dengan nilai a dan bmerupakan sebuah konstanta yang dihasilkan oleh efek pertumbuhan pelepah sawit secaraalami, sedangkan x merupakan waktu pertumbuhan pelepah kelapa sawit.
Pengaktifan Kimia Berbantuan Gelombang Mikro Karbon Aktif dari Kulit Kacang dengan Waktu Pra-karbonisasi yang Berbeda Awitdrus, Awitdrus; Mulfida, Dewi; Farma, Rakhmawati; Saktioto, Saktioto; Iwantono, Iwantono
Jurnal Fisika Vol 8, No 2 (2018)
Publisher : Jurnal Fisika

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Karbon aktif berbahan dasar kulit kacang (Arachis hypogaea L) disintesis menggunakan metode pengaktifan kimia berbantuan gelombang mikro. Kulit kacang dipra-karbonisasi selama 2 jam, 3 jam dan 4 jam pada temperatur 200 oC. Pengaktifan kimia dilakukan menggunakan kalium hidroksida dengan rasio massa pra-karbonisasi dan kalium hidroksida adalah 2:1 selama 24 jam. Iradiasi gelombang mikro dilakukan pada daya keluaran 630 watt selama 20 menit. Sifat fisika karbon aktif dikarakterisasi menggunakan difraksi sinar-X untuk mengetahui struktur mikro, isoterma adsorpsi/desorpsi N2 untuk mengetahui parameter porositas, serta infra merah transformasi Fourier untuk mengetahui struktur rantai karbon aktif. Pola difraksi sinar-X menunjukkan bahwa semua karbon aktif memiliki struktur turbostratik yang ditandai dengan adanya puncak (002) dan (100). Luas permukaan dan volume pori karbon aktif tertinggi adalah 153 m2/g dan 0,064 cm3/g untuk karbon aktif dengan waktu pra-karbonisasi selama 2 jam. Struktur rantai karbon menunjukkan adanya  gugus fungsi P=O, C-O, C-C, C-H pada bilangan gelombang 1031 cm-1, 1609,67 cm-1, 2363,87 cm-1, dan 2867,31 cm-1.
ANALISA PENGARUH FILTER WARNA DAN DAYA LAMPU FLUORESCENT TERHADAP KELAJUAN NYAMUK Rahayu, Gita; Saktioto, Saktioto
Komunikasi Fisika Indonesia Vol 15, No 2 (2018)
Publisher : Universitas Riau

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Mosquitoes are insects that can cause dangerous problems to human health. Therefore, mosquitoes need to be identified based on its motion so it can stay away from human. The purpose of this research is to investigate the effect of power and color spectrum of lamp toward mosquito speed. This research used optical method based on light beam that affected mosquitobody. This research designed a radiation system inside a glass box with thickness of 0,5 cm size (30x7x20) cm. Five mosquitoes were irradiated by light from fluorescent lamp with power 11 Watt and 26 Watt that have been filtered using red, orange, yellow, green, blue and purple color plastics. The radiation process was recorded using a digital camera about 26 minutes. The recorded video was processed using Tracker program. The Tracker program analyzedthe mosquito speed based on its displacement from one to another position. The results showed that mosquito highest speed at unfiltered light, red, blue and purple colors occurred when irradiated with 26 Watt lamp while at color of orange, yellow and green occured when irradiated with 11 Watt lamp. Mosquitoes highest speed value when irradiated by orange, yellow and green are 0,632 m/s, 0,693 m/s and 0,645 m/s. Mosquitoes lowest speed value when irradiated by blue and purple light are 0,308 m/s and 0,285 m/s. The speed of the mosquitoes when irradiated by red and unfiltered lights are 0,517 m/s and 0,541 m/s respectively. The data showed that mosquitoes moved away from light source when irradiated by unfiltered lights, red, blue and purple while mosquitoes approached the light source when irradiated by orange, yellow and green light.
ANALISIS KOMPENSASI DISPERSI MENGGUNAKAN PENGUAT RAMAN PADA JARINGAN WDM (WAVELENGTH DIVISION MULTIPLEXING) DALAM KOMUNIKASI SERAT OPTIK Ikhsan, Roby; Syahputra, Romi Fadli; Saktioto, Saktioto
Komunikasi Fisika Indonesia Vol 15, No 2 (2018)
Publisher : Universitas Riau

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The discovery of optical fiber cause widespread revolution of communication system. Optical fiber communication has excellency on data transmission speed, security, flexibility, and broadly bandwidth. The applying of WDM network can broaden the bandwidth so that the transmission performance becomes more splendid. Although some factors such as dispersion, attenuation, and scattering can hinder the performance of fiber optic on sending data. Moreover dispersion can wreck data and spread pulse as it travels alongs fiber so that causing interference. There is some methods  of dispersion compensation. In this paper, Fiber Raman Amplifier is used on WDM network to strengthen signal which is sent to detector. This research utilize simulation approachment  with various bandwidth and length fiber. The results show lowest BER value and highest Q-factor at bandwidth frequency of 30 GHz and fiber length of 20 km.
STRATEGI PENANGGULANGAN KEBAKARAN PADA LAHAN GAMBUT DENGAN MENGGUNAKAN PENDEKATAN EKO-TEKNOLOGI PADA MASYARAKAT PETANI DI DESA RIMBO PANJANG KECAMATAN TAMBANG KABUPATEN KAMPAR PROVINSI RIAU Saktioto, Saktioto; Defrianto, Defrianto; Syech, Riad; Syahril, Syahril; Risanto, Joko
Komunikasi Fisika Indonesia Vol 15, No 2 (2018)
Publisher : Universitas Riau

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People who care about the environment always reject the use of peat land for large-scale plantation areas, because this can cause an increase in carbon gas and can even cause damage to peat land in Rimbo Panjang Village, Tambang District, Kampar Regency. that there was an event of a land fire which almost hit the residential area in Rimbo Panjang village, Kec. Kampar District Mine on February 24, 2015. That there are complaints from the community in Rimbo Panjang village, Kec. Kampar Regency Mine about environmental conditions or smog. The implementation of Eco-Technology can protect the environment of peatlands to maintain sustainability and avoid fire from peatlands and regulate groundwater management on peatlands.
Chern-Simons-Antoniadis-Savvidy Forms and Non-Abelian Anomaly Hamdan, Suhaivi; Erwin, Erwin; Saktioto, Saktioto
Journal of Aceh Physics Society Volume 8, Number 1, January 2019
Publisher : Aceh Physics Society

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Kuat medan tensor yang ditransformasikan secara homogen terhadap perluasan transformasi gauge memenuhi bentuk sifat invarian gauge. Analisa invarian gauge dalam bantuk integeralnya memperlihatkan hubungan dengan koordinat ruang-waktu yang menunjukan bentuk baru dari topologi Lagrangian. Sifat invarian dari bentuk Pontryagin-Chern terhadap kuat medan tensor non-Abelian dan lemma Poincare dapat digunakan untuk mengkontruksi bentuk ChSAS yang menunjukan sifat quasi-invarian dibawah transformasi gauge. Artikel ini bertujuan untuk membuktikan bahwa kuat medan tensor Yang-Mills dari bentuk ChSAS memilik variasi gauge anomali non-Abelian seperti pada bentuk Chern-Simons. Integrasi bentuk ChSAS menghasilkan dimensi-4, 6 dan 8 variasi gauge genap dan memperlihatkan hubungan dengan bentuk Chern-Simons dimensi-3 dan 5 untuk variasi gauge ganjil. Bentuk ChSAS memperlihatkan variabel lebih kompleks yang menujukan sifat berosilasi. Tensors field strength transformation homogeneously to extend gauge transformation fulfilling charateristic gauge invariant form. Analysis gauge invariant in integral form shows corresponding with space-time coordinate that prove new topology Lagrangians form. Furthermore invariant charateristic of Pontryagin-Chern to non-Abelian tensor gauge fields and lemma Poincare used to contruct ChSAS forms which shows quasi-inavriant under gauge transformation. This paper aims to prove Yang-Mills tensor gauge field of ChSAS forms has variation non-Abelian anomaly like Chern-Simons forms. The integration ChSAS forms resulted 4, 6 and 8-dimensional even gauge variation which also correspond 3 and 5-dimensional odd gauge variation Chern-Simons forms. The ChSAS forms also showed complex variable and osilation.  Keywords: Pontryagin-Chern, Kuat medan tensor non-Abelian, Chern-Simans-Antoniadis-Savvidy, Anomali Non-Abelian.