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All Journal International Journal of Electrical and Computer Engineering Scan : Jurnal Teknologi Informasi dan Komunikasi Jurnal Teknologi Terapan Abdimasku : Jurnal Pengabdian Masyarakat Jurnal Pengabdian kepada Masyarakat Nusantara Journal of Computer and Information Systems Ampera Journal of Computer, Electronic, and Telecommunication (COMPLETE) Jurnal Jaring SainTek Jumat Keagamaan: Jurnal Pengabdian Masyarakat AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Abdi Wina : Jurnal Pengabdian Kepada Masyarakat Universitas Kristen Wira Wacana Sumba Frontiers in Community Service and Empowerment Jurnal Cakrawala Maritim Jurnal Teknologi Maritim JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) International Conference on Maritime Technology and Its Application Faraday: Journal of Fundamental Physics, Research, and Applied Science
Ni’matut Tamimah
Politeknik Perkapalan Negeri Surabaya
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Detecting Optical Fiber Wavelength Shifts Induced by Sugar Solution Concentration Using Lagrange Interpolation Ni'matut Tamimah; Aslam C. P. Siregar
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 10 No. 2 (2026)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v10i2.1034

Abstract

Optical fiber can be used as a sensor because changes in the surrounding medium affect light propagation. This study aims to detect changes in the wavelength of light in optical fiber caused by different sugar solution concentrations using Lagrange interpolation. This study uniquely integrates stripped-cladding optical fiber sensing with Lagrange interpolation to estimate unmeasured wavelength responses across varying sugar concentrations using a safe, environmentally friendly sugar solution. The method involved removing the cladding layer of the optical fiber and applying sugar solutions with concentrations from 44.444% to 54.545%. A 589-nm yellow LED was transmitted through the fiber and measured with a spectrometer. The results showed that increasing sugar concentration reduced the wavelength from 555.26 nm to 546.75 nm. Therefore, this method is effective for detecting changes in solution concentration. Contribution to Sustainable Development Goals (SDGs):SDG 4: Quality EducationSDG 8: Decent Work and Economic GrowthSDG 9: Industry, Innovation and InfrastructureSDG 12: Responsible Consumption and Production
Rekonfigurasi Antena Folded Dipole Mikrostrip Berbasis Laser Merah dan Microwave Multifunctional Analyzer (MMA) Aslam Chitami Priawan Siregar; Yono Hadi Pramono; Gatut Yudoyono; Ni’matut Tamimah
JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Vol. 9 No. 2 (2025): November Edition
Publisher : Universitas Nurul Huda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30599/jipfri.v9i2.4745

Abstract

With the increasing use of communication devices across various regions, antennas with stable signal performance are essential to ensure reliable information transmission. In this study, a microstrip folded-dipole antenna operating in the SHF band was developed using a reconfiguration mechanism based on a 650-nm red laser and metamaterial absorber (MMA). The initial antenna structure was designed and simulated in CST software with a target operating frequency of 9 GHz. Experimental results show that the antenna without a resonator exhibits an operating frequency of 13.77 GHz when the laser is off and 3.15 GHz when the laser is on. When integrated with the resonator, the operating frequencies shift closer to the simulation results, ranging from 15.75 GHz (laser off) to 7.02 GHz (laser on). The return-loss performance also improves with the implementation of the resonator. Without the resonator, the antenna achieves −33 dB return loss in laser-off mode and −34.15 dB in laser-on mode. With the resonator, the return loss values are −21.88 dB (laser off) and −26.61 dB (laser on). These findings indicate that the proposed configuration technique is applicable for outdoor Wi-Fi signal enhancement in the 5 GHz band and as a blind-spot sensing element for automotive radar systems.
Co-Authors Adi Wirawan Husodo Ahmad, Mahasin Maulana Alam, Hafiz Akbar Aminatus Sa’diyah Andika Aldo Pratama Anggara Trisna Nugraha Anifatul Faricha Aprilia Dewi Ardiyanti Aslam Chitami Priawan Siregar Asri, Purwidi Budi Prasojo, Budi Budianto, Ekky Nur Budiyanto, Ekky Nur Chatarina Umbul Wahyuni Devina Puspita Sari Dianita Wardani Diego Ilham Yoga Agna Edy Setiawan Eko Julianto Eky Novianarenti Eky Novianarenti Endro, Dimas Fajar Rahmat Adzani Faris Riyadi Galih Anindita Gatut Yudoyono H, Fitri Haidhar Wahyu S Hakam, M Heriyansyah, Rafi Akbar Ii Munadhif Ika Erawati Indasyah, Enny Laili Agustin Widyaningrum Luluk Kusminah, Imah Luluk, Imah M Anis Mustaghfirin M Hakam Mahardhika, Pekik Mardi Santoso Muhammad Achirul Nanda Muhammad Bilhaq Ashlah Muhammad Falahudin Malich Salaz Muhammad Izzul Haj Mukhammad Jamaludin Mustaghfirin, M Anis Naufal, Muhammad Ellang Ponti Almas Karamina Puspita Sari, Devina Qurrotun 'Ayun Mawadatur Rohmah Rafi Akbar Heriyansyah Rahmania Firdiansyah Rina Sandora Robin Addwiyansyah Alvaro Samrat Rozan, Hafiz Salsabila Ika Yuniza Sa’diyah, Aminatus Siti Maghfirotul Ulyah Suci Indaryani Syafiuddin Tarikh Azis Ramadani Ulfah Abqari Wismawati, Endah Witjonarko, R. Dimas Endro Yono Hadi Pramono