Title :
Microstructured Tube-Leaky Glass Waveguide for Delivery of High-Powered Er:Yag Laser
Author :
Kobayashi, S. ; Katagiri, Takahiro ; Matsuura, Yasuyuki
Author_Institution :
Grad. Sch. of Eng., Tohoku Univ., Sendai, Japan
Abstract :
We present tube-leaky fiber with microstructured glass supports as a hollow core microstructured optical fiber. Attenuation constants of tube-leaky fibers are derived by using a ray optic method and designed the wall thickness of the fibers for Er:YAG laser which is often used for medical applications. From the loss measurements of Er:YAG laser, the tube-leaky fibers supported by microstructured glass made of borosilicate-glass can deliver laser with 0.85 dB/m despite of high material absorption around laser wavelength. The high power energy transmission results of the fabricated fibers are at the order of 80-120 mJ. These energies are enough to ablate biological tissues in surgical operations.
Keywords :
borosilicate glasses; erbium; holey fibres; laser materials processing; optical attenuators; optical design techniques; optical fibre fabrication; optical fibre losses; optical glass; optical waveguides; ray tracing; solid lasers; B2O3-SiO2; YAG:Er; attenuation constants; biological tissue ablation; borosilicate glass; energy 80 mJ to 120 mJ; high power energy transmission; high-powered erbium:YAG laser; hollow core microstructured optical fiber; laser wavelength; material absorption; medical applications; microstructured tube-leaky glass waveguide; optical loss measurements; ray optic method; surgical operations; tube-leaky fiber; wall thickness; Educational institutions; Electron tubes; Glass; Loss measurement; Measurement by laser beam; Optical waveguides; Waveguide lasers; Er:YAG laser; glass drawing technique; high power delivery; microstructured fiber; tube-leaky waveguide;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2013.2295838
