Paper
14 October 2004 Mechanical fabrication of precision microlenses on optical fiber endfaces
Author Affiliations +
Abstract
This paper presents a purely mechanical means of producing highly concentric spherical lenses at the endfaces of optical fibers. The production process has two stages. First conical lenses are produced in a grinding process that ensures excellent concentricity. Then the conical lenses are transformed to spherical lenses using a novel process called loose abrasive blasting. The cone grinding is carried out on a micro-grinding machine that has a sophisticated control system that enables the production of precision conical lenses. The blasting is carried out on a diamond blasting machine. Plots showing automatic centering performance of the micro-grinding machine and scanning electron microscopy photographs of the conical and spherical lenses are presented.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gareth Milton, Yousef Gharbia, and Jayantha Katupitiya "Mechanical fabrication of precision microlenses on optical fiber endfaces", Proc. SPIE 5523, Current Developments in Lens Design and Optical Engineering V, (14 October 2004); https://doi.org/10.1117/12.560264
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KEYWORDS
Spindles

Actuators

Control systems

Optical fibers

Axicons

Gaussian filters

Spherical lenses

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