TY - GEN
T1 - Measurements of coupling efficiency of high power Er:YAG laser in different types of optical fibers
AU - Beltrán Bernal, Lina Marcela
AU - Canbaz, Ferda
AU - Friederich, Niklaus F.
AU - Cattin, Philippe C.
AU - Zam, Azhar
N1 - Publisher Copyright:
© 2020 SPIE.
PY - 2020
Y1 - 2020
N2 - The main purpose of this study is to evaluate the performance of different optical fibers after coupling an Er:YAG laser through them. This allows us to evaluate the feasibility of using them in future for minimally invasive ablation of bone, where a fiber has to be guided inside an endoscopic device. We coupled a high-power Er:YAG laser (λ = 2.94 μm) in different fibers separately. We analyzed the features and benefits of each fiber during the coupling process. The laser was operated at repetition rates of 1, 5, and 10 Hz in the energy range of 10-830 mJ. We used hollow-core, fluoride, sapphire and germanium oxide fibers with core sizes of 500, 450, 425 and 450 μm, respectively. The coupling efficiencies were determined by comparing the measured input and output energies for all the fibers. The resistance of each fiber to the input energy was evaluated by monitoring the stability of the measured output energy over time. From our observations, the coupling efficiencies for all the fibers were in the range 70 to 81 %. Due to the high coupling efficiency, all fibers have the potential to be used in endoscopic applications. However, their use will mostly depend on the individual need of a specific application.
AB - The main purpose of this study is to evaluate the performance of different optical fibers after coupling an Er:YAG laser through them. This allows us to evaluate the feasibility of using them in future for minimally invasive ablation of bone, where a fiber has to be guided inside an endoscopic device. We coupled a high-power Er:YAG laser (λ = 2.94 μm) in different fibers separately. We analyzed the features and benefits of each fiber during the coupling process. The laser was operated at repetition rates of 1, 5, and 10 Hz in the energy range of 10-830 mJ. We used hollow-core, fluoride, sapphire and germanium oxide fibers with core sizes of 500, 450, 425 and 450 μm, respectively. The coupling efficiencies were determined by comparing the measured input and output energies for all the fibers. The resistance of each fiber to the input energy was evaluated by monitoring the stability of the measured output energy over time. From our observations, the coupling efficiencies for all the fibers were in the range 70 to 81 %. Due to the high coupling efficiency, all fibers have the potential to be used in endoscopic applications. However, their use will mostly depend on the individual need of a specific application.
KW - Carbonization
KW - Er:YAG laser
KW - GeO2 fiber
KW - Hollow-core fiber HSW
KW - Laser ablation of bone
KW - Optical fiber
KW - Sapphire fiber
KW - ZBLAN fiuoride fiber
UR - http://www.scopus.com/inward/record.url?scp=85082646556&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85082646556&partnerID=8YFLogxK
U2 - 10.1117/12.2546048
DO - 10.1117/12.2546048
M3 - Conference contribution
AN - SCOPUS:85082646556
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX
A2 - Gannot, Israel
A2 - Gannot, Israel
PB - SPIE
T2 - Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX 2020
Y2 - 1 February 2020 through 2 February 2020
ER -