Laser polishing of optical fiber end surface

Date

2001-09-01

Author

Udrea, M
Orun, H
Alacakir, A

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A new application of glass surface treatment is presented. Fine polishing of optical fiber end (silica type), core/cladding surface is performed. A low-power monomode longitudinal 10-W continuous wave CO2 laser is used. Laser power density is 140 W/cm(2). The beam is spatially filtered to increase the beam uniformity. A decrease of the roughness from 2.5 mum average to less than 100 nm is achieved. The microstructure of the surfaces is studied using atomic force microscopy. An optimum irradiation time of exposure of 6 s is found. A loss decrease of 1.5 dB after laser irradiation is measured. Thus, a simple method to further decrease the optical fiber losses after mechanical polishing is put into evidence. This method is easy to apply to any type of optical fiber. Moreover, it is considered that for such polished fibers, when used in conjunction with a connector (FC/PC, ST, SC, APC, and DIN type connectors), the efficiency in any application increases. (C) 2001 Society of Photo-Optical Instrumentation Engineers.

Subject Keywords

Laser, Material processing, Optical fibers, Atomic force microscopy

URI

https://hdl.handle.net/11511/66452

Journal

OPTICAL ENGINEERING

DOI

https://doi.org/10.1117/1.1390517

Collections

Department of Physics, Article

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Polishing of optical fibers using a CO2 laser Orun, H; Udrea, M; Alacakir, A (1999-09-24) A new application of glass surface treatment is presented here. Fine polishing of optical fiber end core/cladding surface, is performed. A small power monomode longitudinal 10 W cw CO2 laser is used. A decrease of the roughness from about 5 microns to hundreds of nanometres was achieved The microstructure of the surfaces has been studied using atomic force microscopy. Applications of polished fiber surfaces are given.
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Citation Formats

M. Udrea, H. Orun, and A. Alacakir, “Laser polishing of optical fiber end surface,” OPTICAL ENGINEERING, pp. 2026–2030, 2001, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66452.