AI Article Synopsis
- A hollow-fiber bundle measuring 80 cm long and 5.5 mm in diameter was developed to transmit high-peak-power pulses from a Q-switched Nd:YAG laser, consisting of 37 glass capillaries.
- The setup included beam-resizing optics to couple the laser beam into the bundle, with a measured coupling loss of 2.3 dB and transmission loss of 0.3 dB at key wavelengths.
- The bundle achieved a maximum output pulse energy of 200 mJ when inert gas flowed through the capillaries, demonstrating its efficacy and durability for applications in dermatology by allowing irradiation over larger areas.
Article Abstract
A hollow-fiber bundle was designed and used to deliver high-peak-power pulses from a Q-switched Nd:YAG laser. An 80 cm long bundle with a total diameter of 5.5 mm was composed of 37 glass capillaries with bore diameters of 0.7 mm. Beam-resizing optics with two lenses were used to couple the laser beam into the bundle. The measured coupling loss due to the limited aperture ratio of the bundle was 2.3 dB, and the transmission loss at wavelengths of 1064 and 532 nm was 0.3 dB. When an inert gas flowed through the bores of the capillaries, the maximum output pulse energy was 200 mJ, which was the limit of the laser used in the experiment. Hollow-fiber bundles withstand irradiation better than single hollow fibers and silica-glass optical fibers do. They are suitable for many dermatological applications because they can be used to irradiate a large area.
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| http://dx.doi.org/10.1364/ao.45.007174 | DOI Listing |
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