Change of Dielectric Constant of Highly Doped-Silica Glass Used in Optical Fibers with Frequency and Temperature Under the Effect of Polarization

Year 2024, , 315 - 325, 15.03.2024

Abdurrahman Günday

https://doi.org/10.31466/kfbd.1408377

Abstract

In this study, the variation of the dielectric constant, i.e. relative permittivity of highly doped-silica glass used in optical fibers with frequency and temperature under the effect of polarization has been investigated. In this context, simulations of the relationship between the dielectric constant and both frequency and temperature have been carried out in the Matlab environment. According to simulation and theoretical analysis, it has been concluded that the dielectric constant of highly doped-silica glass tends to increase with the increase of ambient temperature. On the other hand, as the frequency of the source increases linearly, the dielectric constant decreases. Hence, the variations of highly doped-silica glass with temperature and frequency have been found to be 2.884 × 10-5 (°K)-1 and – 7.50 × 10-15 (Hz)-1, respectively. Moreover, in response to the change in frequency between 1011 Hz and 1012 Hz, the dielectric constant has taken values between 2.085 and 2.070. Additionally, for dielectric constant variations in 2.070 – 2.085 range, values of the relative change in polarization have been obtained in the range of 9.4695 × 10-12 F/m – 9.6023 × 10-12 F/m.

Keywords

Dielectric constant, Dielectric polarization, Frequency, Temperature, Highly doped-silica glass, Optical fiber

Optik Fiberlerde Kullanılan Yüksek Katkılı Silika Camın Dielektrik Sabitinin Polarizasyon Etkisi Altında Frekans ve Sıcaklıkla Değişimi

Abstract

Bu çalışmada, optik fiberlerde kullanılan yüksek katkılı silika camın dielektrik sabitinin yani bağıl geçirgenliğinin polarizasyon etkisi altında frekans ve sıcaklıkla değişimi incelenmiştir. Bu bağlamda dielektrik sabiti ile frekans ve sıcaklık arasındaki ilişkinin Matlab ortamında simülasyonları gerçekleştirilmiştir. Simülasyon ve teorik analizlere göre yüksek katkılı silika camın dielektrik sabitinin ortam sıcaklığının artmasıyla birlikte artma eğiliminde olduğu sonucuna varılmıştır. Diğer taraftan, kaynağın frekansı doğrusal olarak arttıkça dielektrik sabiti azalmaktadır. Dolayısıyla, yüksek katkılı silika camın sıcaklık ve frekansa göre değişimi, sırasıyla 2.884 × 10-5 (°K)-1 ve – 7.50 × 10-15 (Hz)-1 olarak bulunmuştur. Ayrıca, frekansın 1011 Hz ile 1012 Hz arasındaki değişimine karşılık dielektrik sabiti, 2,085 ile 2,070 arasında değerler almıştır. Bunun yanı sıra, 2,070 ile 2,085 aralığındaki dielektrik sabiti değişimleri için bağıl polarizasyon değişimi değerleri, 9.4695 × 10-12 F/m – 9.6023 × 10-12 F/m aralığında elde edilmiştir.

Keywords

Dielektrik sabiti, Dielektrik kutuplanma, Frekans, Sıcaklık, Yüksek katkılı silika cam, Optik fiber

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