Lasers, Fiber Optics, and Communications

Method for producing angled optical fiber tips in the laboratory

[+] Author Affiliations
John J. Davenport, Michelle Hickey, Justin P. Phillips, Panicos A. Kyriacou

City University London, Research Centre for Biomedical Engineering, School of Computer Science, Mathematics and Engineering, Northampton Square, London EC1V 0HB, United Kingdom

Opt. Eng. 55(2), 026120 (Feb 26, 2016). doi:10.1117/1.OE.55.2.026120
History: Received November 16, 2015; Accepted January 25, 2016
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Abstract.  A simple laboratory method is presented for producing optical fibers with tips polished at various angles. Angled optical fiber tips are used in applications such as optical sensing and remote laser surgery, where they can be used to control the angle of light leaving the fiber or direct it to the side. This allows for greater control and allows areas to be reached that otherwise could not. Optical fibers were produced with tip angles of 45 deg using a Perspex mounting block with an aluminum base plate. The dispersion of light leaving the tip was tested using a blue (470 nm) LED. The angle imposed an angular shift on the light diffracting out of the tip of approximately 30 deg. Additionally, some light reflected from the tip surface to diffract at 90 deg through the side of the fiber. These observations are consistent with theory and those seen by other studies, validating the method. The method was simple to perform and does not require advanced manufacturing tools. The method is suitable for producing small quantities of angle-tipped optical fibers for research applications.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

John J. Davenport ; Michelle Hickey ; Justin P. Phillips and Panicos A. Kyriacou
"Method for producing angled optical fiber tips in the laboratory", Opt. Eng. 55(2), 026120 (Feb 26, 2016). ; http://dx.doi.org/10.1117/1.OE.55.2.026120


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