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Proceedings Paper

Advances in the development of liquid-core waveguides for IR applications
Author(s): Joerg Meister; Roland Jung; Stefan Diemer; Michael Haisch; Werner Fuss; Peter Hering
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Paper Abstract

With the development of infrared transmitting fibers, medical applications such as minimally invasive surgery are becoming feasible. In particular we investigate liquid core waveguides with an Er:YAG laser at 2.94 micrometer. Because of their advantages like variability in diameter, high flexibility, and mechanical stability, liquid core waveguides appear to be an alternative to conventional IR waveguides. In this work we present two types of liquid CCl4 filled lightguides that have been developed with plastic tube and quartz capillary as cladding. The former with an inner diameter of 1.6 mm showed an attenuation of 2.6 dB/m at 2.94 micrometer. For the quartz glass capillary with an inner diameter of 550 micrometers an attenuation of approximately 4.8 dB/m was determined in first experimental results. Due to the great flexibility and the high mechanical stability of both lightguides, bending radii below 10 mm are possible. Transmission losses depending on bending radii are discussed. A comparison between measurements with an IR-spectrometer and an Er:YAG laser shows that a minimum transmission loss of 2 dB/m can be achieved.

Paper Details

Date Published: 5 April 1996
PDF: 7 pages
Proc. SPIE 2677, Biomedical Fiber Optics, (5 April 1996); doi: 10.1117/12.237559
Show Author Affiliations
Joerg Meister, Heinrich-Heine-Univ. (Germany)
Roland Jung, Heinrich-Heine-Univ. (Germany)
Stefan Diemer, Max-Planck-Institut fuer Quantenoptik (Germany)
Michael Haisch, Heinrich-Heine-Univ. (Germany)
Werner Fuss, Max-Planck-Institut fuer Quantenoptik (Germany)
Peter Hering, Heinrich-Heine-Univ. (Germany)
Max-Planck-Institut fuer Quantenoptik (Germany)

Published in SPIE Proceedings Vol. 2677:
Biomedical Fiber Optics
Abraham Katzir; James A. Harrington, Editor(s)

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