Polymer-coated hollow fibers for medical infrared lasers: fabrication, transmission, and end sealing

Yi-Wei Shi; Yukio Abe; Shintaro Mohri; Yuji Matsuura; Mitsunobu Miyagi

doi:10.1117/12.384912

3 May 2000 Polymer-coated hollow fibers for medical infrared lasers: fabrication, transmission, and end sealing

Yi-Wei Shi, Yukio Abe, Shintaro Mohri, Yuji Matsuura, Mitsunobu Miyagi

Proceedings Volume 3911, Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II; (2000) https://doi.org/10.1117/12.384912
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States

Abstract

Hollow fibers for medical IR lasers are fabricated by silver-mirror plating and liquid-phase polymer coating method. The coating thicknesses of the inner polymer layer of the fibers are designed so that the fibers show low-loss property for medical IR lasers with various wavelengths, such as Nd:YAG at 1.06 micrometers , Er:YAG at 2.94 micrometers and CO₂ at 10.6 micrometers . Transmission characteristics of the fibers are shown. Small-bore fibers with inner diameters of 320 and 250 micrometers for low-loss Er:YAG laser transmission are successfully fabricated. These fibers show better flexibility and small additional loss when bent. A new fabrication procedure without curing-process is also proposed. By considering that end sealing is always an important task for hollow fibers in medical applications, various sealing materials, such as polyimide, cyclic olefin polymer, and fluorocarbon polymer are introduced and transmission properties are summarized.

Citation Download Citation

Yi-Wei Shi, Yukio Abe, Shintaro Mohri, Yuji Matsuura, and Mitsunobu Miyagi "Polymer-coated hollow fibers for medical infrared lasers: fabrication, transmission, and end sealing", Proc. SPIE 3911, Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II, (3 May 2000); https://doi.org/10.1117/12.384912

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