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Long-Pulse Laser-Assisted Surface Modification Of An Imaging Fiber For Fabrication Of Integrated Fiber Microlenses

Author

Listed:
  • V. M. MURUKESHAN

    (School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798, Singapore)

  • M. A. KHIRMAN

    (School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798, Singapore)

  • H. Y. ZHENG

    (Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, Singapore 638075, Singapore)

  • J. L. TAN

    (Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, Singapore 638075, Singapore)

Abstract

This paper discusses the results obtained with a long pulse laser (such as a CO2laser) assisted shaping of microspherical lenses at the end face of a specialty image fiber. The 600-μm-diameter image fiber consists of 15 000 pixels (individual fibers) with a spatial resolution of 267/mm. When laser-assisted heating is induced at the surface of the fiber tip, it tends to become spherical in shape due to surface tension. The curvature formed at the surface will act as the microspherical lens. The effects of the laser repetition rate and irradiation time on the surface finish and curvature of the shaped lens are illustrated in this paper.

Suggested Citation

  • V. M. Murukeshan & M. A. Khirman & H. Y. Zheng & J. L. Tan, 2004. "Long-Pulse Laser-Assisted Surface Modification Of An Imaging Fiber For Fabrication Of Integrated Fiber Microlenses," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 11(03), pages 259-264.
    • Handle: RePEc:wsi:srlxxx:v:11:y:2004:i:03:n:s0218625x04006165
    DOI: 10.1142/S0218625X04006165
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