High-repetition-rate ultrafast fiber lasers for material processing

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buir.contributor.authorİlday, Fatih Ömer
dc.citation.issueNumber3en_US
dc.citation.volumeNumber24en_US
dc.contributor.authorKalaycıoğlu, H.en_US
dc.contributor.authorElahi, P.en_US
dc.contributor.authorAkçaalan, Ö.en_US
dc.contributor.authorİlday, Fatih Ömeren_US
dc.date.accessioned2019-02-21T16:04:35Z
dc.date.available2019-02-21T16:04:35Z
dc.date.issued2018en_US
dc.departmentDepartment of Physicsen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractUltrafast lasers operating at high repetition rates, in particular the GHz range, enable new possibilities in laser-material processing, particularly accessing the recently demonstrated ablation-cooled regime. We provide a unified perspective of the unique opportunities created by operating at high repetition rates together with our efforts into the development of enabling laser technology, including new results on further scaling up the capabilities of the laser systems. In order to access GHz repetition rates and microjoule-level pulse energies without requiring kilowatts of average power, we implement burst-mode operation. Our results can be grouped into two distinct directions: low-and high-power systems. Pulsed pumping is employed in the later stages of low-power systems, which have low burst repetition rates to achieve high pulse energies, whereas the technique of doping management is developed for the continuously pumped power amplifier stage of high power systems. While most of the developments have been at 1-μm wavelength range due to the relative maturity of the laser technology, we also report the development of Tm-fiber lasers around the 2-μm region specifically for tissue processing and laser-surgery applications.
dc.description.sponsorshipManuscript received August 1, 2017; revised November 2, 2017; accepted November 3, 2017. Date of publication November 10, 2017; date of current version November 22, 2017. This work was supported in part by the TÜBITAK under Project 112T980, Project 112T944, and Project 115F098 and in part by the European Union FP7 CROSS TRAP. The work of F. Ö. Ilday was supported by the European Research Council (ERC) Consolidator Grant ERC-617521 NLL. (Corresponding author: Hamit Kalaycıog˘lu.) H. Kalaycıog˘lu, P. Elahi, and Ö. Akc¸aalan are with the Department of Physics, Bilkent University, Ankara 06800, Turkey (e-mail: hamitkal@bilkent.edu.tr; pelahi@fen.bilkent.edu.tr; akcaalan@bilkent.edu.tr).
dc.identifier.doi10.1109/JSTQE.2017.2771745
dc.identifier.issn0792-1233
dc.identifier.urihttp://hdl.handle.net/11693/50196
dc.language.isoEnglish
dc.publisherInstitute of Electrical and Electronics Engineers
dc.relation.isversionofhttps://doi.org/10.1109/JSTQE.2017.2771745
dc.relation.projectTürkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITAK: 115F098 - Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITAK: 112T944 - Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITAK: 112T980 - Bilkent Üniversitesi - European Research Council, ERC: ERC-617521 NLL.
dc.source.titleIEEE Journal of Selected Topics in Quantum Electronicsen_US
dc.subjectAblation-cooled laser-material removalen_US
dc.subjectBurst modeen_US
dc.subjectFiber lasersen_US
dc.subjectHigh repetition rate lasersen_US
dc.subjectLasers for material processingen_US
dc.subjectUltrafast fiber lasersen_US
dc.titleHigh-repetition-rate ultrafast fiber lasers for material processingen_US
dc.typeArticleen_US

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