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Materials 2014, 7(7), 4878-4895; doi:10.3390/ma7074878

Fabrication of an Optical Fiber Micro-Sphere with a Diameter of Several Tens of Micrometers

1
School of Instrument Science and Opto-electronics Engineering, Hefei University of Technology, Hefei 230009, China
2
Product and Technology Department, Hefei Xinsheng Photoelectric Technology Co., Ltd./ BOE Technology Group Co., Ltd., Hefei 230009, China
*
Author to whom correspondence should be addressed.
Received: 30 April 2014 / Revised: 9 June 2014 / Accepted: 19 June 2014 / Published: 25 June 2014
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Abstract

A new method to fabricate an integrated optical fiber micro-sphere with a diameter within 100 µm, based on the optical fiber tapering technique and the Taguchi method is proposed. Using a 125 µm diameter single-mode (SM) optical fiber, an optical fiber taper with a cone angle is formed with the tapering technique, and the fabrication optimization of a micro-sphere with a diameter of less than 100 µm is achieved using the Taguchi method. The optimum combination of process factors levels is obtained, and the signal-to-noise ratio (SNR) of three quality evaluation parameters and the significance of each process factors influencing them are selected as the two standards. Using the minimum zone method (MZM) to evaluate the quality of the fabricated optical fiber micro-sphere, a three-dimensional (3D) numerical fitting image of its surface profile and the true sphericity are subsequently realized. From the results, an optical fiber micro-sphere with a two-dimensional (2D) diameter less than 80 µm, 2D roundness error less than 0.70 µm, 2D offset distance between the micro-sphere center and the fiber stylus central line less than 0.65 µm, and true sphericity of about 0.5 µm, is fabricated. View Full-Text
Keywords: optical fiber tapering; Taguchi method; integrated optical fiber micro-sphere; minimum zone method; true sphericity optical fiber tapering; Taguchi method; integrated optical fiber micro-sphere; minimum zone method; true sphericity
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MDPI and ACS Style

Yu, H.; Huang, Q.; Zhao, J. Fabrication of an Optical Fiber Micro-Sphere with a Diameter of Several Tens of Micrometers. Materials 2014, 7, 4878-4895.

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