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On the Lapping Mechanism of Optical Fiber End-Surfaces Using Fixed Diamond Abrasive Films

[+] Author and Article Information
JiAn Duan

College of Mechanical and Electrical Engineering, Central South University, Changsha, Hunan 410083, Chinaduanjian@mail.csu.edu.cn

DeFu Liu1

College of Mechanical and Electrical Engineering, Central South University, Changsha, Hunan 410083, Chinaliudefu@mail.csu.edu.cn

1

Corresponding author.

J. Manuf. Sci. Eng 133(2), 024504 (Mar 25, 2011) (4 pages) doi:10.1115/1.4003792 History: Received August 08, 2009; Revised March 03, 2011; Published March 25, 2011; Online March 25, 2011

The purpose of this paper is to reveal material removal mechanisms of optical fiber end-surface in lapping processes. The lapping process experiments are conducted using fixed diamond abrasive lapping films with various particle sizes of 6μm, 3μm, 1μm, and 0.5μm. The micrographs of the optical fiber end-surfaces are observed using a scanning electron microscope. The experimental results show that there exist three material removal modes in the lapping processes: brittle fracture mode, semibrittle and semiductile mode, and ductile mode. These modes are mainly controlled by abrasive particle size, and there appears a brittle-ductile transition’s critical point when lapping films with a particle size of 3μm are used to lap optical fiber end-surfaces. An interpretation is proposed for the formation mechanism of the plastic deformed layer on the optical fiber end-surfaces.

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Copyright © 2011 by American Society of Mechanical Engineers
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Figures

Grahic Jump Location
Figure 3

Lapping process of optical fiber end-surfaces

Grahic Jump Location
Figure 4

SEM micrographs of optical fiber end-surfaces lapped by diamond abrasive lapping films. Particle sizes are (a) 6 μm, (b) 3 μm, (c) 1 μm, and (d) 0.5 μm.

Grahic Jump Location
Figure 5

Load applied to one diamond abrasive particle

Grahic Jump Location
Figure 2

Manufacturing procedure of optical fiber end-surfaces

Grahic Jump Location
Figure 6

Material removal modes in lapping process of optical fiber end-surface: (a) brittle fracture removal mode and (b) ductile removal mode

Grahic Jump Location
Figure 1

Lapping setup for optical fiber connectors

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