Dr. Kristian Cvecek

Chair of Photonic Technologies

Research associates

Address

Konrad-Zuse-Straße 3-5 91052 Erlangen

Contact

Email: kristian.cvecek@fau.de

Research focuses:

Ultrashort Pulse Laser processes
Glass processing
Sensing / Optical metrology

Positions and tasks:

Scientific Coordinator
Team manager of the group Ultrashort Pulse Laser processes

Publications:

Romboy A., Cvecek K., Schmidt M.:
Generation of SHG Holograms at 400 nm from a Beam-Shaped Fundamental Using Short Femtosecond Pulses in a Collinear Type-2 Phase Matching Crystal
In: Journal of Laser Micro Nanoengineering 21 (2026), p. 36-40
ISSN: 1880-0688
DOI: 10.2961/jlmn.2026.01.2006
BibTeX: Download

Cvecek K., Schmidt M.:
High-convenience Interferometric Measurement of the Spectrum of a Picosecond Industrial-grade Nd:YAG Laser Using a PID Linear Drive
In: Journal of Laser Micro Nanoengineering 20 (2025), p. 204-211
ISSN: 1880-0688
DOI: 10.2961/jlmn.2025.03.2005
BibTeX: Download
Haas B., Mary R., Cvecek K., Roider C., Schmidt M., Döllinger M., Semmler M.:
Liquid Lens Optical Design for Adjustable Laser Spot Array for the Laser-Based Three-Dimensional Reconstruction of Vocal Fold Oscillations
In: Optics 6 (2025), Article No.: 10
ISSN: 2673-3269
DOI: 10.3390/opt6010010
BibTeX: Download
Schneider N., Chechik L., Schmidt M., Cvecek K.:
Modification of Femtosecond Laser Absorption by Electron Beam Irradiation
In: Journal of Laser Micro Nanoengineering (2025)
ISSN: 1880-0688
DOI: 10.2961/jlmn.2025.03.2004
BibTeX: Download

Schmidt M., Cvecek K., Duflou J., Vollertsen F., Arnold CB., Matthews MJ.:
Dynamic beam shaping—Improving laser materials processing via feature synchronous energy coupling
In: CIRP Annals - Manufacturing Technology 73 (2024), p. 533-559
ISSN: 0007-8506
DOI: 10.1016/j.cirp.2024.05.005
BibTeX: Download

Ackermann L., Gehring M., Roider C., Cvecek K., Schmidt M.:
Spot Arrays for Uniform Material Ablation with Ultrashort Pulsed Lasers
In: Optics and Laser Technology 163 (2023), p. 109358
ISSN: 0030-3992
DOI: 10.1016/j.optlastec.2023.109358
URL: https://www.sciencedirect.com/science/article/pii/S0030399223002517
BibTeX: Download
Ackermann L., Roider C., Cvecek K., Barré N., Aigner C., Schmidt M.:
Polarization-Controlled Nonlinear Computer-Generated Holography
In: Scientific Reports (2023), Article No.: 10338
ISSN: 2045-2322
DOI: 10.1038/s41598-023-37443-z
URL: https://www.nature.com/articles/s41598-023-37443-z
BibTeX: Download
Ackermann L., Roider C., Cvecek K., Barré N., Schmidt M.:
Diminishing Speckle Noise during Nonlinear Phase-Only Beam Shaping
2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023 (Munich, DEU, June 26, 2023 - June 30, 2023)
In: 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023 2023
DOI: 10.1109/CLEO/EUROPE-EQEC57999.2023.10232165
BibTeX: Download
Ackermann L., Roider C., Cvecek K., Barré N., Schmidt M.:
Diminishing Speckle Noise During Nonlinear Phase-only Beam Shaping
2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023 (Munich, DEU, June 26, 2023 - June 30, 2023)
In: IEEE (ed.): 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023 2023
DOI: 10.1109/CLEO/Europe-EQEC57999.2023.10232165
BibTeX: Download
(anderer)
Ackermann L., Roider C., Gehring M., Cvecek K., Schmidt M.:
High-Speed Speckle Averaging for Phase-Only Beam Shaping in Laser Materials Processing
In: Optics and Lasers in Engineering 165 (2023), Article No.: 107537
ISSN: 0143-8166
DOI: 10.1016/j.optlaseng.2023.107537
BibTeX: Download

Ackermann L., Roider C., Cvecek K., Schmidt M.:
Methods for uniform beam shaping and their effect on material ablation
In: Applied Physics A: Solids and Surfaces (2022)
ISSN: 0721-7250
DOI: 10.1007/s00339-022-06004-y
URL: https://link.springer.com/article/10.1007/s00339-022-06004-y
BibTeX: Download

Bergler M., Cvecek K., Werr F., Veber A., Schreiner J., Eckstein U., Webber KG., Schmidt M., de Ligny D.:
Coupling raman, brillouin and nd3+ photo luminescence spectroscopy to distinguish the effect of uniaxial stress from cooling rate on soda-lime silicate glass
In: Materials 14 (2021), Article No.: 3584
ISSN: 1996-1944
DOI: 10.3390/ma14133584
BibTeX: Download

Bergler M., Cvecek K., Werr F., Brehl M., de Ligny D., Schmidt M.:
Cooling rate calibration and mapping of ultra-short pulsed laser modifications in fused silica by Raman and Brillouin spectroscopy
In: International Journal of Extreme Manufacturing 2 (2020)
ISSN: 2631-8644
DOI: 10.1088/2631-7990/ab9583
URL: https://iopscience.iop.org/article/10.1088/2631-7990/ab9583
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Bergler M., Cvecek K., Werr F., Brehl M., de Ligny D., Schmidt M.:
Erratum: Cooling rate calibration and mapping of ultra-short pulsed laser modifications in fused silica by Raman and Brillouin spectroscopy (International Journal of Extreme Manufacturing DOI: 10.1088/2631-7990/ab9583)
In: International Journal of Extreme Manufacturing 3 (2020), Article No.: 019501
ISSN: 2631-8644
DOI: 10.1088/2631-7990/abc46d
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Miyamoto I., Cvecek K., Schmidt M.:
Advances of Laser Welding Technology of Glass -Science and Technology-
In: Journal of Laser Micro Nanoengineering 15 (2020), p. 63-76
ISSN: 1880-0688
DOI: 10.2961/jlmn.2020.02.1001
BibTeX: Download

Cvecek K., Dehmel S., Miyamoto I., Schmidt M.:
A review on glass welding by ultra-short laser pulses
In: International Journal of Extreme Manufacturing 1 (2019), p. 042001
ISSN: 2631-8644
DOI: 10.1088/2631-7990/ab55f6
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Cvecek K., Heberle J., Bergler M., Miyamoto I., de Ligny D., Schmidt M.:
Glass machining and in-situ metrology: Recovery of spatio-temporal phase distribution from 2-dimensional interference fringe movement caused by irradiation of glass with ultra-short laser pulses at high pulse repetition rates
CLEO: Applications and Technology, CLEO_AT 2019 (San Jose, CA, May 5, 2019 - May 10, 2019)
In: Optics InfoBase Conference Papers 2019
DOI: 10.1364/CLEO_AT.2019.ATu3I.1
BibTeX: Download
Dilipkumar A., Al-Shemmary A., Kreiß L., Cvecek K., Carlé BE., Knieling F., Menezes JG., Thoma OM., Schmidt M., Neurath M., Waldner M., Friedrich O., Schürmann S.:
Label-Free Multiphoton Endomicroscopy for Minimally Invasive In Vivo Imaging
In: Advanced Science 6 (2019), Article No.: 1801735
ISSN: 2198-3844
DOI: 10.1002/advs.201801735
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Cvecek K., Miyamoto I., Heberle J., Bergler M., de Ligny D., Schmidt M.:
Analysis of shockwave formation in glass welding by ultra-short pulses
10th CIRP Conference on Photonic Technologies, LANE 2018 (Furth, September 3, 2018 - September 6, 2018)
In: Michael Schmidt (ed.): Procedia CIRP 2018
DOI: 10.1016/j.procir.2018.08.128
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Miyamoto I., Cvecek K., Schmidt M.:
Nonlinear absorption dynamics simulated in internal modification of glass at 532nm and 1064nm by ultrashort laser pulses
10th CIRP Conference on Photonic Technologies, LANE 2018 (Furth, September 3, 2018 - September 6, 2018)
In: Michael Schmidt (ed.): Procedia CIRP 2018
DOI: 10.1016/j.procir.2018.08.129
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Cvecek K., Stenglein F., Miyamoto I., Schmidt M.:
Influence of wavelength on glass welding by ultra-short laser pulses
In: Journal of Laser Micro Nanoengineering 12 (2017), p. 115-119
ISSN: 1880-0688
DOI: 10.2961/jlmn.2017.02.0012
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Cvecek K., Groeschel B., Schmidt M.:
Process properties of electronic high voltage discharges triggered by ultra-short pulsed laser filaments
9th International Conference on Photonic Technologies, LANE 2016
DOI: 10.1016/j.phpro.2016.08.061
BibTeX: Download
Miyamoto I., Okamoto Y., Tanabe R., Ito Y., Cvecek K., Schmidt M.:
Mechanism of dynamic plasma motion in internal modification of glass by fs-laser pulses at high pulse repetition rate
In: Optics Express 24 (2016), p. 25718-25731
ISSN: 1094-4087
DOI: 10.1364/OE.24.025718
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Alexeev I., Heberle J., Cvecek K., Nagulin K., Schmidt M.:
High Speed Pump-Probe Apparatus for Observation of Transitional Effects in Ultrafast Laser Micromachining Processes
In: Micromachines 6 (2015), p. 1914-1922
ISSN: 2072-666X
DOI: 10.3390/mi6121462
URL: http://www.mdpi.com/2072-666X/6/12/1462
BibTeX: Download
Cvecek K., Eckl J., Eiselen S., Huber HP., Schmidt M.:
Evaluation of scanner-based focus finding methods on rough surfaces
In: Journal of Laser Micro Nanoengineering 10 (2015), p. 304-309
ISSN: 1880-0688
DOI: 10.2961/jlmn.2015.03.0012
BibTeX: Download
Cvecek K., Odato R., Dehmel S., Miyamoto I., Schmidt M.:
Gap bridging in joining of glass using ultra short laser pulses
In: Optics Express 23 (2015), p. 5681-5693
ISSN: 1094-4087
DOI: 10.1364/OE.23.005681
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Cvecek K., Miyamoto I., Schmidt M.:
Gas bubble formation in fused silica generated by ultra-short laser pulses
In: Optics Express 22 (2014), p. 15877-15893
ISSN: 1094-4087
DOI: 10.1364/OE.22.015877
BibTeX: Download
Stein S., Heberle J., Gürtler FJ., Cvecek K., Roth S., Schmidt M.:
Influences of Nozzle Material on Laser Droplet Brazing Joints with Cu89Sn11 Preforms
In: Physics Procedia 56 (2014), p. 709-719
ISSN: 1875-3892
DOI: 10.1016/j.phpro.2014.08.078
URL: http://www.sciencedirect.com/science/article/pii/S1875389214002235
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Strauß J., Alexeev I., Cvecek K., Schmidt M.:
Konfokale Bestimmung der Fokuslage und Kalibriermethodiken entsprechender Systeme
Laser in der Elektronikproduktion & Feinwerktechnik (Fürth, March 12, 2014 - March 13, 2014)
In: Michael Schmidt, Stephan Roth (ed.): Laser in der Elektronikproduktion & Feinwerktechnik, Bamberg: 2014
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Alexeev I., Strauß J., Gröschl AC., Cvecek K., Schmidt M.:
Laser focus positioning method with submicrometer accuracy
In: Applied Optics 52 (2013), p. 415-421
ISSN: 0003-6935
DOI: 10.1364/AO.52.000415
BibTeX: Download
Cvecek K., Strauß J., Alexeev I., Miyamoto I., Schmidt M.:
Practical Aspects of Surface Generated Third Harmonic for Highly Precise Beam-workpiece Alignment
In: Journal of Laser Micro Nanoengineering 8 (2013), p. 201-205
ISSN: 1880-0688
DOI: 10.2961/jlmn.2013.03.0003
BibTeX: Download

Alexeev I., Cvecek K., Genser J., Schmidt M.:
Direct Waveguide Writing with High Energy High Repetition Rate Picosecond Laser Pulses
DOI: 10.1016/j.phpro.2012.10.081
BibTeX: Download
Alexeev I., Cvecek K., Schmidt C., Miyamoto I., Frick T., Schmidt M.:
Characterization of Shear Strength and Bonding Energy of Laser Produced Welding Seams in Glass
In: Journal of Laser Micro Nanoengineering 7 (2012), p. 279-283
ISSN: 1880-0688
DOI: 10.2961/jlmn.2012.03.0009
BibTeX: Download
Cvecek K., Miyamoto I., Adam M., Schmidt M.:
Effects of Spherical Aberrations on Micro Welding of Glass using Ultra Short Laser Pulses
7th International Conference on Laser Assisted Net Shape Engineering. LANE 2012
DOI: 10.1016/j.phpro.2012.10.074
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Cvecek K., Miyamoto I., Strauß J., Bui V., Scharfenberg S., Frick T., Schmidt M.:
Strength of Joining Seams in Glass Welded by Ultra-fast Lasers Depending on Focus Height.
In: Journal of Laser Micro Nanoengineering 7 (2012), p. 68-72
ISSN: 1880-0688
DOI: 10.2961/jlmn.2012.01.0013
BibTeX: Download
Miyamoto I., Cvecek K., Schmidt M.:
Non-dimensional evaluation of nonlinear absorptivity in internal modification of glass using USLP
31st International Congress on Applications of Lasers and Electro-Optics, ICALEO 2012 (USA, September 23, 2012 - September 27, 2012)
In: ICALEO 2012 - 31st International Congress on Applications of Lasers and Electro-Optics 2012
DOI: 10.2351/1.5062571
BibTeX: Download
Strauß J., Cvecek K., Gröschl AC., Alexeev I., Schmidt M.:
Focus Alignment Method for Laser Manufacturing at Sub-micron Positional Accuracy
In: Physics Procedia 39 (2012), p. 800-806
ISSN: 1875-3892
DOI: 10.1016/j.phpro.2012.10.103
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Cvecek K., Miyamoto I., Strauß J., Wolf M., Frick T., Schmidt M.:
Sample preparation method for glass welding by ultrashort laser pulses yields higher seam strength
In: Applied Optics 50 (2011), p. 1941-1944
ISSN: 0003-6935
DOI: 10.1364/AO.50.001941
BibTeX: Download

Cvecek K., Alexeev I., Miyamoto I., Schmidt M.:
Defect formation in glass welding by means of ultra short laser pulses
DOI: 10.1016/j.phpro.2010.08.172
BibTeX: Download

Bin Mohid Z., Okamoto Y., Yamamoto K., Uno Y., Miyamoto I., Cvecek K., Schmidt M., Bechtold P.:
E17 Evaluation of Molten Zone in Glass Welding Using Ultra-short Pulsed Laser(Laser processing)
Proceedings of International Conference on Leading Edge Manufacturing in 21st century (, June 19, 2017)
In: Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2009
DOI: 10.1299/jsmelem.2009.5.569
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Cvecek K., Sponsel K., Stephan C., Onishchukov G., Ludwig R., Schubert C., Schmauß B., Leuchs G.:
Phase-Preserving 2R-Regeneration of a WDM RZ-DPSK Signal Using a Nonlinear Amplifying Loop Mirror
OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference (San Diego, CA, February 24, 2008 - February 28, 2008)
In: Optical Communication / National Fiber Optic Engineers Conference OFC/NFOEC 24.-28.02. 2008
DOI: 10.1109/OFC.2008.4528769
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Onishchukov G., Cvecek K., Sponsel K., Stephan C., Ludwig R., Schubert C., Schmauß B., Leuchs G.:
Phase-preserving amplitude regeneration for a WDM RZ-DPSK signal using a nonlinear amplifying loop mirror
In: Optics Express 16 (2008), p. 1923-1928
ISSN: 1094-4087
DOI: 10.1364/OE.16.001923
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Sponsel K., Cvecek K., Stephan C., Onishchukov G., Schmauß B., Leuchs G.:
Effective Negative Nonlinearity of a Nonlinear Amplifying Loop Mirror for Compensating Nonlinearity-Incuced Signal Distortions
In: Optical Communication, 2008. ECOC 2008. 34th European Conference on 21-25 2008
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Sponsel K., Cvecek K., Stephan C., Onishchukov G., Schmauß B., Leuchs G.:
Influence of Group Velocity Dispersion on phase-preserving Amplitude Regeneration by a Nonlinear Amplifying Loop Mirror
Conference on and Quantum Electronics and Laser Science Conference Lasers and Electro-Optics, QELS 2008 (San Jose, CA, May 4, 2008 - May 9, 2008)
In: Lasers and Electro-Optics, 2008 and Conference on Quantum Electronics and Laser Science, pages 1-2, 4 - 8 May 2008
DOI: 10.1109/QELS.2008.4552890
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Cvecek K., Sponsel K., Ludwig R., Schubert C., Stephan C., Onishchukov G., Schmauß B., Leuchs G.:
2R-Regeneration of an 80-Gb/s RZ-DQPSK signal by a nonlinear amplifying loop mirror
In: IEEE Photonics Technology Letters 19 (2007), p. 1475-1477
ISSN: 1041-1135
DOI: 10.1109/LPT.2007.903755
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Cvecek K., Sponsel K., Stephan C., Ludwig R., Schubert C., Onishchukov G., Schmauß B., Leuchs G.:
Phase-Preserving 2R-Regeneration of an 80-Gb/s {RZ-DQPSK}, Signal by Using a Nonlinear Amplifying Loop Mirror
ECOC (Berlin, September 16, 2007 - September 20, 2007)
In: ECOC September 2007
DOI: 10.1049/ic:20070178
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Sponsel K., Cvecek K., Stephan C., Onishchukov G., Schmauß B., Leuchs G.:
Optimization of a nonlinear amplifying loop mirror for amplitude regeneration in phase-shift-keyed transmission
In: IEEE Photonics Technology Letters 19 (2007), p. 1858-1860
ISSN: 1041-1135
DOI: 10.1109/LPT.2007.908739
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Sponsel K., Cvecek K., Stephan C., Onishchukov G., Schmauß B., Leuchs G.:
Phase-Preserving Signal Regeneration by a Nonlinear Amplifying Loop Mirror
2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, CLEO (Munich, June 17, 2007 - June 22, 2007)
In: Cleo Juni, München: 2007
DOI: 10.1109/CLEOE-IQEC.2007.4386434
BibTeX: Download
Sponsel K., Stephan C., Cvecek K., Onishchukov G., Schmauß B., Leuchs G.:
DPSK Signal Regeneration Using a Nonlinear Amplifying Loop Mirror
OFC/NFOEC 2007 - Optical Fiber Communication and the National Fiber Optic Engineers Conference 2007 (Anaheim, CA, March 25, 2007 - March 29, 2007)
In: Conf. Proc. OFC, Paper OThB2, March 2007
DOI: 10.1109/OFC.2007.4348648
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Cvecek K., Onishchukov G., Sponsel K., Striegler A., Schmauß B.:
Experimental Investigation of a Modified NOLM for Phase-Encoded Signal Regeneration
In: IEEE Photonics Technology Letters 18 (2006), p. 1801-1803
ISSN: 1041-1135
DOI: 10.1109/LPT.2006.880754
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Cvecek K., Striegler A., Meißner M., Sponsel K., Schmauß B., Leuchs G.:
Phase preserving 2R-Regeneration using a nonlinear optical loop mirror
2005 Conference on Lasers and Elctro-Optics Europe (Munich, June 12, 2005 - June 17, 2005)
In: Cleo/Europe EQEC Conference, Munich, Germany, June 2005
DOI: 10.1109/CLEOE.2005.1568267
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Striegler A., Meißner M., Cvecek K., Sponsel K., Leuchs G., Schmauß B.:
NOLM based DPSK Signal Regeneration
In: IEEE Photonics Technology Letters 17 (2005), p. 639-641
ISSN: 1041-1135
DOI: 10.1109/LPT.2004.842320
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Striegler A., Meißner M., Cvecek K., Sponsel K., Schmauß B.:
All-optical DPSK-Signal-Regeneration based on a NOLM-Setup
In: Optical Fiber Technology (2005)
ISSN: 1068-5200
DOI: 10.1109/OFC.2005.192674
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Meißner M., Sponsel K., Cvecek K., Benz S., Weisser B., Schmauß B., Leuchs G.:
3.9-dB OSNR Gain by an NOLM-Based 2-R Regenerator
In: IEEE Photonics Technology Letters 16 (2004), p. 2105-2107
ISSN: 1041-1135
DOI: 10.1109/LPT.2004.833043
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