FEMTOCHIP
FEMTOSECOND LASER ON A CHIP
Grant period 2021-03-01 - 2024-02-29
Funding body European Union
Call number H2020-FETOPEN-2018-2019-2020-01
Grant number 965124
Identifier G:(EU-Grant)965124
Note: Over the last 20 years, femtosecond lasers have led to a host of novel scientific and industrial instrumentation enabling the direct measurement of optical frequencies and the realization of optical clocks, a Nobel Prize winning technology. Initially developed for fundamental science, the potential of femtosecond lasers for a wide range of cross-disciplinary applications has been demonstrated, including e.g. those in optical telecommunication, photonic analog-to-digital conversion, ultra-high precision signal sources for the upcoming quantum technologies and broadband optical spectroscopy in the environmental or bio-medical sciences and many more.
Although, impressive cross-disciplinary demonstrations of the potential of femtosecond lasers are numerous, the technology has been hampered by its large size and high cost per system. The existing mode-locked semiconductor diode laser technology does not fulfil the needed performance specifications. The aim of the FEMTOCHIP project is to deliver a fully integrated chip-scale mode-locked laser with pulse energy, peak power and jitter specifications of a shoebox sized fiber laser system enabling a large fraction of the above-mentioned applications. Key challenges addressed are large cross-section, high gain, low background loss waveguide amplifiers, low loss passive waveguide technology and chirped waveguide gratings to accommodate high pulse peak power, to suppress Q-switching instabilities and to implement short pulse production by on-chip dispersion compensation and artificial saturable absorption.
Therefore, the FEMTOCHIP consortium is composed of leaders in CMOS compatible ultra-low loss integrated SiN-photonics, rare-earth gain media development and deposition technology as well as ultrafast laser physics and technology for design, simulation and characterization to identify and address the key challenges in demonstrating a highly stable integrated femtosecond laser with table-top performance.
Recent Publications All known publications ... Download: BibTeX | EndNote XML , Text | RIS |
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Journal Article
Lorenzen, J. (Corresponding author) CFEL * DESY * ; Wang, K. ; Kilinc, M. DESY * ; Pergament, M. CFEL * DESY * ; Garcia-Blanco, S. M. ; Kärtner, F. CFEL * DESY * ; Singh, N. K. DESY *
Zero-PDG silicon photonic amplifier with high saturation power and low noise figure
Nature Communications 17 (1 ), 5670 (2026 ) [10.1038/s41467-026-74486-y ] 2026
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Conference Presentation
Sinobad, M. (Corresponding author) CFEL * Extern * ; Molteni, F. CFEL * Extern * ; Gehrmann, P. CFEL * DESY * ; Lorenzen, J. CFEL * DESY * ; Hammer, D. N. ; Gaafar, M. A. Extern * ; Herr, T. CFEL * DESY * ; Singh, N. CFEL * DESY * ; Kärtner, F. X. CFEL * XFEL.EU * DESY *
Dispersion Compensating Silicon Nitride Waveguide Bragg Gratings for Ultrashort Pulse Compression
2025 Conference on Lasers and Electro-Optics , CLEO , Long Beach, CA Long Beach, CA , USA , 4 May 2025 - 9 May 20252025-05-04 2025-05-09
(2025 ) 2025
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Journal Article
Singh, N. K. (Corresponding author) CFEL * DESY * ; Wang, K. ; Garcia-Blanco, S. M. ; Kärtner, F. X. CFEL * XFEL.EU * DESY *
Watt level continuous-wave laser in silicon photonics
APL photonics 10 (8 ), 086109 (2025 ) [10.1063/5.0271250 ] 2025
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Journal Article
Mbonde, H. M. (Corresponding author) ; Hashemi, B. ; Segat Frare, B. L. ; Wildi, T. CFEL * DESY * ; Ahmadi, P. T. ; Bonneville, D. B. ; Singh, N. CFEL * DESY * ; Mascher, P. ; Kärtner, F. X. CFEL * XFEL.EU * DESY * ; Herr, T. CFEL * DESY * ; Bradley, J. D. B. (Corresponding author)
Demonstration of passive, nonlinear, and active devices on a hybrid photonic platform
Optics express 33 (2 ), 1836 - 1847 (2025 ) [10.1364/OE.546052 ] 2025
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Journal Article
Singh, N. K. (Corresponding author) CFEL * DESY * ; Lorenzen, J. CFEL * DESY * ; Kilinc, M. DESY * ; Wang, K. ; Sinobad, M. CFEL * Extern * ; Francis, H. ; Carriera, J. ; Geiselmann, M. ; Demirbas, U. Extern * ; Pergament, M. CFEL * DESY * ; Blanco, S. M. G. ; Kärtner, F. CFEL * XFEL.EU * DESY *
Sub-2W tunable laser based on silicon photonics power amplifier
Light 14 (1 ), 18 (2025 ) [10.1038/s41377-024-01681-1 ] 2025
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Journal Article
Singh, N. K. (Corresponding author) CFEL * DESY * ; Lorenzen, J. CFEL * DESY * ; Wang, K. ; Gaafar, M. Extern * ; Sinobad, M. CFEL * Extern * ; Francis, H. ; Edelmann, M. CFEL * Extern * ; Geiselmann, M. ; Herr, T. CFEL * DESY * ; Garcia-Blanco, S. ; Kärtner, F. CFEL * XFEL.EU * DESY *
Watt-class CMOS-compatible optical high power amplifier
Nature photonics NA , 1-8 (2025 ) [10.1038/s41566-024-01587-9 ] 2025
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Conference Presentation
Lorenzen, J. (Corresponding author) CFEL * DESY * ; Wang, K. ; Kilinc, M. CFEL * DESY * ; Francis, H. ; Demirbas, U. Extern * ; Sinobad, M. CFEL * DESY * ; Pergament, M. CFEL * DESY * ; Garcia-Blanco, S. M. ; Singh, N. K. CFEL * DESY * ; Kärtner, F. CFEL * XFEL.EU * DESY *
Spectroscopic Properties of Thulium-doped High-power Integrated LMA Amplifiers
2024 Conference on Lasers and Electro-Optics US , CLEO , Charlotte, NC Charlotte, NC , USA , 5 May 2024 - 10 May 20242024-05-05 2024-05-10
(2024 ) 2024
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Conference Presentation (Other)
Ruhnke, B. CFEL * DESY * ; Mahmoud, G. CFEL * DESY * ; Wildi, T. CFEL * DESY * ; Ludwig, M. CFEL * DESY * ; Ulanov, A. CFEL * DESY * ; Voumard, T. CFEL * Extern * ; Wang, K. ; Sinobad, M. CFEL * DESY * ; Lorenzen, J. CFEL * DESY * ; Francis, H. ; Carreira, J. ; Singh, N. K. CFEL * DESY * ; Kärtner, F. CFEL * XFEL.EU * DESY * ; Garcia-Blanco, S. M. ; Herr, T. (Corresponding author) CFEL * DESY *
Increasing Kerr-comb efficiency through pump recycling in a chip-integrated gain medium
2024 SPIE Photonics Europe , SPIE 2024 , Deutsches Elektronen Synchrotron DESY Strasbourg , Deutsches Elektronen Synchrotron DESY , France , 7 Apr 2024 - 11 Apr 20242024-04-07 2024-04-11
(2024 ) 2024
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Journal Article
Ulanov, A. CFEL * DESY * ; Wildi, T. CFEL * DESY * ; Pavlov, N. G. ; Jost, J. D. ; Karpov, M. ; Herr, T. (Corresponding author) CFEL * DESY *
Synthetic reflection self-injection-locked microcombs
Nature photonics 18 (3 ), 294-299 (2024 ) [10.1038/s41566-023-01367-x ] 2024
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Contribution to a conference proceedings/Contribution to a book
Singh, N. K. (Corresponding author) CFEL * DESY * ; Lorenzen, J. CFEL * DESY * ; Kilinc, M. DESY * ; wang, K. ; Sinobad, M. CFEL * Extern * ; Francis, H. ; Carriera, J. ; Geiselmann, M. ; Demirbas, U. Extern * ; Pergament, M. CFEL * DESY * ; Garcia-Blanco, S. M. ; Kärtner, F. CFEL * XFEL.EU * DESY *
High Power 1.8 W Tunable Laser Based on CMOS Compatible Power Amplifier
2024 [Ebook] The 25th European Conference on Integrated Optics : Proceedings of ECIO 2024, June 17–19, Aachen, Germany / Witzens, Jeremy ; Poon, Joyce ; Zimmermann, Lars ; Freude, Wolfgang 1st ed. 2024, Cham : Springer Nature Switzerland, 2024, The 25th European Conference on Integrated Optics , (ECIO 2024) , Aachen Aachen , Germany , 16 Jun 2024 - 20 Jun 20242024-06-16 2024-06-20
Hamburg : Springer Nature Switzerland, Springer Proceedings in Physics 402 , : 1st ed. 2024, 4 (2024 ) [10.1007/978-3-031-63378-2 ] 2024
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All known publications ... Download: BibTeX | EndNote XML , Text | RIS |