Dr. Ferda Canbaz Profile

Dr. Ferda Canbaz

at Univ. Basel

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Author

Publications (6)

Proceedings Article | 7 March 2023 Presentation + Paper

Bone ablation performance of a Ho:YAG laser

Cigdem Cetin, Sandra Drusová, Arsham Hamidi, Yakub Bayhaqi, Georg Rauter, Philippe Cattin, Azhar Zam, Ferda Canbaz

Proceedings Volume 12377, 1237708 (2023) https://doi.org/10.1117/12.2647703

KEYWORDS: Laser ablation, Bone, Tissues, Surgery, Optical coherence tomography, Laser optics

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Proceedings Article | 9 December 2021 Paper

Observation of controlled temperature changes of bone by phase-sensitive optical coherence tomography

Arsham Hamidi, Yakub Bayhaqi, Ferda Canbaz, Alexander Navarini, Philippe Cattin, Azhar Zam

Proceedings Volume 11924, 119241C (2021) https://doi.org/10.1117/12.2616133

KEYWORDS: Bone, Optical coherence tomography, Temperature metrology, Laser tissue interaction, Cameras, Pulsed laser operation, Laser ablation, Tissue optics, Laser energy, Phase measurement

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SPIE Journal Paper | 13 September 2021 Open Access

Optical fibers for endoscopic high-power Er:YAG laserosteotomy

Lina Beltrán Bernal, Ferda Canbaz, Salim Darwiche, Katja M. Nuss, Niklaus Friederich, Philippe Cattin, Azhar Zam

JBO, Vol. 26, Issue 09, 095002, (September 2021) https://doi.org/10.1117/12.10.1117/1.JBO.26.9.095002

KEYWORDS: Bone, Er:YAG lasers, Germanium, Sapphire, Laser ablation, Optical fibers, Fiber lasers, Endoscopy, Oxides, Energy efficiency

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Significance: The highest absorption peaks of the main components of bone are in the mid-infrared region, making Er:YAG and CO2 lasers the most efficient lasers for cutting bone. Yet, studies of deep bone ablation in minimally invasive settings are very limited, as finding suitable materials for coupling high-power laser light with low attenuation beyond 2 μm is not trivial. Aim: The first aim of this study was to compare the performance of different optical fibers in terms of transmitting Er:YAG laser light with a 2.94-μm wavelength at high pulse energy close to 1 J. The second aim was to achieve deep bone ablation using the best-performing fiber, as determined by our experiments. Approach: In our study, various optical fibers with low attenuation (λ = 2.94 μm) were used to couple the Er:YAG laser. The fibers were made of germanium oxide, sapphire, zirconium fluoride, and hollow-core silica, respectively. We compared the fibers in terms of transmission efficiency, resistance to high Er:YAG laser energy, and bending flexibility. The best-performing fiber was used to achieve deep bone ablation in a minimally invasive setting. To do this, we adapted the optimal settings for free-space deep bone ablation with an Er:YAG laser found in a previous study. Results: Three of the fibers endured energy per pulse as high as 820 mJ at a repetition rate of 10 Hz. The best-performing fiber, made of germanium oxide, provided higher transmission efficiency and greater bending flexibility than the other fibers. With an output energy of 370 mJ per pulse at 10 Hz repetition rate, we reached a cutting depth of 6.82 ± 0.99 mm in sheep bone. Histology image analysis was performed on the bone tissue adjacent to the laser ablation crater; the images did not show any structural damage. Conclusions: The findings suggest that our prototype could be used in future generations of endoscopic devices for minimally invasive laserosteotomy.

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Proceedings Article | 1 April 2020 Presentation + Paper

Imaging photothermal-induced expansion of bone during laser osteotomy by phase-sensitive OCT: preliminary results

Arsham Hamidi, Yakub Bayhaqi, Ferda Canbaz, Alexander Navarini, Philippe Cattin, Azhar Zam

Proceedings Volume 11359, 113590K (2020) https://doi.org/10.1117/12.2555675

KEYWORDS: Bone, Optical coherence tomography, Laser ablation, Er:YAG lasers, Temperature metrology, Laser tissue interaction, Glasses, Actuators, Tissues, Laser therapeutics

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Proceedings Article | 9 March 2020 Presentation

Ablation monitoring with integrated long-range OCT and Er: YAG laser for smart laserosteotomy (Conference Presentation)

Arsham Hamidi, Yakub Aqib Bayhaqi, Iris Schmidt, Ferda Canbaz, Yifan Jian, Alexander Navarini, Philippe Cattin, Azhar Zam

Proceedings Volume 11229, 1122914 (2020) https://doi.org/10.1117/12.2545978

KEYWORDS: Optical coherence tomography, Laser ablation, Erbium, YAG lasers, Er:YAG lasers, Imaging systems, Range imaging, System integration, Bone, Laser therapeutics

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Proceedings Article | 20 February 2020 Paper

Measurements of coupling efficiency of high power Er:YAG laser in different types of optical fibers

Lina Marcela Beltrán Bernal, Ferda Canbaz, Niklaus Friederich, Philippe Cattin, Azhar Zam

Proceedings Volume 11233, 112331H (2020) https://doi.org/10.1117/12.2546048

KEYWORDS: Er:YAG lasers, ZBLAN, Sapphire, Fiber couplers, Optical fibers, Laser dentistry, Fiber lasers, Bone, Resistance, Surgery

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