Mid-infrared radiation spatial profile delivered by COP/Ag hollow glass waveguide

The modification of mid-infrared radiation spatial profile caused by COP/Ag hollow glass waveguide was investigated. The four laser systems – flashlamp pumped Er:YAG, Tm:YAG, and diode pumped Tm:YAG, and Tm:YAP laser sources – generating radiation in free-running regime were designed and constructed. The cyclic olefin polymer-coated silver hollow glass waveguide having an inner diameter of 700 μm and length up to 1.3 m was used as a delivery system base. The changes of beam spatial structures through the transfer system are presented. For Er:YAG laser the waveguide system was also investigated for bent cases. The energy transmission characteristics were measured for all systems.

[1]  Helena Jelinkova,et al.  Delivery of high-powered picosecond pulses in near-IR region by special silver hollow-glass waveguides , 1999, Photonics West - Biomedical Optics.

[2]  Michal Nemec,et al.  Delivery of high-energy radiation in midinfrared spectral region by hollow waveguides , 2003, SPIE BiOS.

[3]  Yuji Matsuura,et al.  Evaluation of gold, silver, and dielectric-coated hollow glass waveguides , 1996 .

[4]  J Sulc,et al.  High-power Nd:YAG laser picosecond pulse delivery by a polymer-coated silver hollow-glass waveguide. , 1999, Optics letters.

[5]  M. Miyagi,et al.  Design theory of dielectric-coated circular metallic waveguides for infrared transmission , 1984 .

[6]  James A. Harrington,et al.  Infrared Fibers and Their Applications , 2003 .

[7]  Petr Koranda,et al.  Laser and ultrasound selective preparation of hard dental tissues , 2005 .

[8]  Michal Nemec,et al.  Delivery of Er:YAG laser radiation by special hollow glass waveguides and its application in medicine , 1999, Photonics Prague.

[9]  Petr Koranda,et al.  Anterior eye tissue transmission for the radiation with the wavelength from eye safe region , 2005 .

[10]  Helena Jelinkova,et al.  Nd:YAG picosecond pulse delivery by cyclic olefin polymer-coated silver hollow glass waveguide , 2000, Photonics West - Biomedical Optics.

[11]  N. Croitoru,et al.  Characterization of hollow fibers for the transmission of infrared radiation. , 1990, Applied optics.

[12]  Helena Jelinkova,et al.  Contact and noncontact laser preparation of hard dental tissues by Er:YAG laser radiation delivered by hollow glass waveguide or articulated arm , 1999, Photonics West - Biomedical Optics.

[13]  Mitsunobu Miyagi,et al.  New cyclic olefin polymer-coated silver hollow glass waveguides for the near-infrared to mid-infrared , 1999, European Conference on Biomedical Optics.

[14]  H. Wigdor,et al.  Morphological evaluation of enamel and dentin irradiated with 9.6 μm CO2 and 2.94 μm Er:YAG lasers , 2005 .