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All Journal IPTEK Journal of Proceedings Series Indonesian Journal of Electrical Engineering and Informatics (IJEEI) JFA (Jurnal Fisika dan Aplikasinya) Halal Research Journal Sewagati

Hatta, Agus Muhamad

Institut Teknologi Sepuluh Nopember

Author-ID : 1611682

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Physics Public Health Social Sciences Other

Published : 6 Documents Claim Missing Document

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Articles

Birefringence Control in Silicon Wire Waveguide by Using Over-etch Ika Puspita; Agus Muhamad Hatta
Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Vol 5, No 2: June 2017
Publisher : IAES Indonesian Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52549/ijeei.v5i2.267

Silicon wire waveguide technology becomes great issue in optical communication system. The high index contrast of the silicon wire waveguide induced the birefringence. It played important role in silicon wire waveguide loss since it caused polarization dependent loss (PDL), polarization mode dispersion (PMD) and wavelength shifting. Hence, suitable controlling birefringence in silicon wire waveguide becomes very important. The current birefringence controlling techniques by using cladding stress and geometrical variation in bulk silicon waveguide was presented. Unfortunately, it could not obtain zero birefringence when applied to silicon wire waveguide. The over-etching technique was employed in this paper to obtain zero birefringence. The tall silicon wire waveguide obtained minimum birefringence.

Experimental Characterization of A Load Sensor Based on Singlemode – Multimode – Singlemode (SMS) Fiber Structure with A Variation of The Number of Bends Rionda Bramanta Kuntaraco; Agus Muhamad Hatta; Sekartedjo Koentjoro; Catur Arif Prastyanto; Insrasurya Budisatria Mochtar
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.393

A load sensor based on singlemode-multimode-singlemode (SMS) fiber structure is presented in this paper. An SMS fiber structure with core diameter of 50 µm and length of 30 cm of the multimode fiber (MMF) section was chosen as a sensor. The measurement principle of the sensor is based on change of SMS fiber structure power response due to the applied load. A fiber bending and load transmitting (FBLT) device is designed to appropiately bend the SMS fiber structure under applied load in order to make the SMS fiber structure work as a load sensor. The applied load can bend the SMS fiber structure and hence affect the multimode interference (MMI) pattern that occured in SMS fiber structure. The number of bends that occured on SMS fiber structure is determined by the pin number of FBLT device. Five variations of pin number at 3, 5, 7, 9 and 11 pins were chosen. The applied load was varied at 0 – 100 kg. From the experiments, it is found that the relative outpout power response of the sensor gave a specific MMI pattern for each pin number variation. The configuration of 3 pins on FBLT device has the best response as a load sensor with the sensitivity at 1.32 μW/kg and R2 at 0.9783 with the longest measurement range from 1.82 – 91.32 kg.

Microbend in an SMS Fiber Structure Fitri Rahmah; Sekartedjo Sekartedjo; Agus Muhamad Hatta
IPTEK Journal of Proceedings Series No 1 (2015): 1st International Seminar on Science and Technology (ISST) 2015
Publisher : Institut Teknologi Sepuluh Nopember

We present a numerical and experimental model of microbend in an SMS fiber structure. We obtain the numerical model by using several boundary conditions in SMS fiber structure. These conditions divided into transmission of light in a straight multimode fiber and in a bend multimode fiber. The microbend in multimode fiber affects the radius of curvature of the fiber. Thus, causes radiation several modes and then re-distribution of guided modes. The guided modes itself will vary in MMI and bring out different output power. The numerical result compare well with the experimental result from variation of the radius of curvature of the fiber (R) and the arc length.

Pengembangan Sensor Napas Berbasis Serat Optik Plastik dengan Cladding Terkelupas untuk Aplikasi di Bidang Medis Wayan Suana; Melania Suweni Muntini; Agus Muhamad Hatta
Jurnal Fisika dan Aplikasinya Vol 8, No 2 (2012)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Telah dihasilkan sensor napas untuk memantau kondisi pernapasan manusia menggunakan serat optik plastik jenis multimode step index. Probe sensor napas sepanjang 10 cm dibuat dengan mengupas cladding serat optik sepanjang 3 cm dibagian tengah probe. Perbedaan temperatur dan kelembaban antara udara inspirasi dengan udara ekspirasi menimbulkan perubahan indeks bias udara yang melingkupi probe sensor, dan mengakibatkan absorpsi medan evanescent yang berbeda sehingga menghasilkan keluaran sensor. Hasil pengukuran menunjukkan bahwa pengaruh kelembaban lebih dominan dibandingkan pengaruh temperatur. Penurunan keluaran sensor yang diakibatkan oleh kelembaban pada rentang kelembaban relatif udara napas (83,7 - 85,4)% adalah 0,653 volt, sedangkan kenaikan keluaran sensor yang diakibatkan oleh temperatur pada rentang temperatur udara napas (29,8-30,6) C adalah 0,023 volt. Hasil pengujian probe sensor napas dalam mendeteksi beberapa kondisi pernapasan menunjukkan bahwa probe sensor napas dapat mendeteksi kondisi pernapasan biasa, pernapasan terengah-engah, dan batuk. Rata-rata selisih keluaran maksimum minimum sensor pada pernapasan biasa, terengah-engah, dan batuk berturut-turut adalah 1,012 volt, 2,157 volt, dan 4,026 volt.

Pendampingan Teknis untuk Peningkatan Kualitas Pengolahan Produk Minyak Serai Wangi (Citronella Oil) di AMKE KTH Panderman, Oro Oro Ombo, Batu Aulia Muhammad Taufiq Nasution; Agus Muhamad Hatta; Detak Yan Pratama; Iwan Cony Setiadi
Sewagati Vol 6 No 2 (2022)
Publisher : Pusat Publikasi ITS

Budidaya tanaman sereh wangi serta ekstraksi kandungan minyak atsirinya memiliki nilai yang sangat tinggi untuk meningkatkan perekonomian masyarakat, dan harga produk minyak serai akan ditentukan oleh kualitas ekstraksi minyak serai yang dihasilkan. Sementara itu kualitas hasil ekstraksi ini sangat dipengaruhi oleh banyak faktor, baik saat proses budidaya dilakukan maupun oleh parameter-parameter proses saat ekstraksi dilakukan. Semua faktor2 yang berpengaruh ini perlu distandarkan dan selalu dikontrol dalam pelaksanaannya, serta penting untuk dipahami oleh pelaku budidaya maupun operator mesin proses ekstraksi. Dalam paper ini akan dilaporkan kegiatan pendampingan yang dilakukan oleh Tim Abdimas Departemen Teknik Fisika ITS beserta Tim KKN Tematik Mahasiswa terhadap pada Kelompok Tani Hutan (KTH) Panderman, selaku kelompok petani pelaku budidaya serai wangi di lokasi Area Modal Konservasi dan Edukasi (AMKE) Oro-oro Ombo, Kecamatan Batu, Kota Batu. Kegiatan pendampingan ini ditujukan untuk menambah wawasan pengetahuan dan pemahaman mereka akan faktor-faktor yang perlu diperhatikan untuk bisa menghasilkan produk serai wangi yang berkualitas baik.

U-bent Plastic Optical Fiber for Lard Adulteration Sensor in Edible Oil Puspita, Ika; Kurniawan, Fredy; Hatta, Agus Muhamad; Koentjoro, Sekartedjo
Halal Research Vol 1 No 1 (2021): February
Publisher : Halal Center ITS

A plastic optical fiber with the structure of U-bent was utilized as a sensor to detect lard adulterants in olive oil. The macro bending was formed on the plastic optical fiber with a bending radius of 10 mm, 12.5 mm, and 15 mm. The output spectra and intensity were measured to detect the existence of lard substance in olive oil. The U-bent plastic optical fiber sensor with a bending radius of 12.5 mm has the optimum performance to detect the lard adulterant substance in olive oil. It has a sensitivity of 4.6 a.u/% with 855 nm LED source and 10.07 a.u/% with 940 nm LED source in intensity-based measurement and 0.50 nm/% in spectrum-based measurement. The proposed sensor is the potential to give rapid detection on lard adulterant in edible oil.

Co-Authors Aulia M.T. Nasution Aulia Muhammad Taufiq Nasution Detak Yan Pratama Detak Yan Pratama Fitri Rahmah Fredy Kurniawan Ika Puspita Ika Puspita Ika Puspita, Ika Insrasurya Budisatria Mochtar Iwan Cony Setiadi Iwan Cony Setiadi, Iwan Cony Muhammad Kamalul Wafi Muthmainnah, Melania Suweni Muntini Prastyanto, Catur Arif Rionda Bramanta Kuntaraco Sekartedjo Koentjoro, Sekartedjo Sekartedjo Sekartedjo Septyaningrum, Erna Wayan Suana

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