Influence of chemical polishing on fluorophosphate fiber preform |
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| Affiliation: | 1. Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, PR China;2. Graduate School of Chinese Academy of Science, Beijing 100039, PR China;1. Department of Physics, Islamia College University Peshawar, 25120 KP, Pakistan;2. Department of Materials Science and Engineering, University of Sheffield, S1 3JD UK;1. Laboratoire de Physique Appliquée, Faculté des Sciences de Sfax, Université de Sfax, B.P. 802, Sfax 3018, Tunisia;2. Physics Department, Rabigh College of Science and Art, King Abdulaziz University, P.O. Box 344, Rabigh 21911, Saudi Arabia;3. Institut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble cedex 9, France;1. Department of Audiology, School of Health, Turgut Özal University, Ankara, Turkey;2. Department of Physics, Faculty of Arts and Sciences, Mustafa Kemal University, Hatay, Turkey;3. Department of Metallurgical and Materials Engineering, Faculty of Technology, Iskenderun Technical University, Hatay, Turkey |
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| Abstract: | Surface treatment of optical glass fibers is an effective method to clean the impurities and remove the damage layer, such as scratches caused by the cold processing. Optical losses at the fiber core/cladding interface can thereby be decreased. Using X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM), we studied the surface composition and morphology of fluorophosphate (FP) glass after polishing and chemical etching. In addition, we investigated the etching mechanism and the optimal concentration of etching solution. Results show that the surface composition is very close to that of the bulk glass for some elements, and the root-mean-square (RMS) roughness is approximately 0.821 nm. A method including acid–alkali pretreatment and a second polishing step is a novel way to improve the smoothness of surface and to eliminate defects such as contaminants and scratches. |
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| Keywords: | B. Impurities FP glass Chemical polishing Damager layer |
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