Gruppenleiter Faseroptik
Abteilung Laserentwicklung
E-Mail: f.wellmann@lzh.deTelefon: +49 511 2788-275
Kurzbiographie
Studium „Optische Technologien“ an der Leibniz Universität Hannover, Abschluss als Master of Science 2016, ausgezeichnet mit dem Dr. Jürgen-Ulderup-Preis, 2021 Promotion an der Leibniz Universität Hannover zu dem Thema "Monolithic Fiber Amplifiers for High Power Single-Frequency and Single-Mode Laser Beam Generation".
Felix Wellmann ist seit 2017 am Laser Zentrum Hannover e.V. als wissenschaftlicher Mitarbeiter tätig. Seit Oktober 2020 leitet Dr.-Ing. Felix Wellmann die Gruppe Faseroptik in der Abteilung Laserentwicklung.
Hauptforschungsgebiete
- Faserlaser
- Einfrequente Lasersysteme
- Laserbasierte Faserkomponentenfertigung
- Automatisierte Fertigung
LZH-Veröffentlichungen
Zeitschriftenaufsatz (reviewed) (65)
CO2-laser-based ablation of glass fibers for fiber-component manufacturing
Proceedings of the 12th CIRP Conference on Photonic Technologies (LANE)
111
621-624
2022
Search of the early O3 LIGO data for continuous gravitational waves from the Cassiopeia A and Vela Jr. supernova remnants
Phys. Rev. D
8
105
082005
2022
All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data
Phys. Rev. D
10
105
102001
2022
Search for continuous gravitational waves from 20 accreting millisecond x-ray pulsars in O3 LIGO data
Phys. Rev. D
2
105
022002
2022
Upper limits on the isotropic gravitational-wave background from Advanced LIGO and Advanced Virgo’s third observing run
Phys. Rev. D
2
104
022004
2021
Population Properties of Compact Objects from the Second LIGO–Virgo Gravitational-Wave Transient Catalog
Astrophys. J. Lett.
1
913
L7
2021
All-sky search for long-duration gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run
Phys. Rev. D
10
104
102001
2021
All-sky search for short gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run
Phys. Rev. D
12
104
122004
2021
All-sky search for continuous gravitational waves from isolated neutron stars in the early O3 LIGO data
Phys. Rev. D
8
104
082004
2021
GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo during the First Half of the Third Observing Run
Phys. Rev. X
2
11
021053
2021
All-sky search in early O3 LIGO data for continuous gravitational-wave signals from unknown neutron stars in binary systems
Phys. Rev. D
6
103
064017
2021
Tests of general relativity with binary black holes from the second LIGO-Virgo gravitational-wave transient catalog
Phys. Rev. D
12
103
122002
2021
Observation of Gravitational Waves from Two Neutron Star–Black Hole Coalescences
Astrophys. J. Lett.
1
915
L5
2021
Constraints on Cosmic Strings Using Data from the Third Advanced LIGO–Virgo Observing Run
Phys. Rev. Lett.
24
126
241102
2021
Open data from the first and second observing runs of Advanced LIGO and Advanced Virgo
SoftwareX
13
100658
2021
Low noise 400 W coherently combined single frequency laser beam for next generation gravitational wave detectors
Opt. Express
7
29
10140-10149
2021
Gravitational-wave Constraints on the Equatorial Ellipticity of Millisecond Pulsars
Astrophys. J.
1
902
L21
2020
GW190814: Gravitational Waves from the Coalescence of a 23 Solar Mass Black Hole with a 2.6 Solar Mass Compact Object
Astrophys. J. Lett.
2
896
L44
2020
Model comparison from LIGO–Virgo data on GW170817’s binary components and consequences for the merger remnant
Class. Quantum Grav.
4
37
045006
2020
Properties and Astrophysical Implications of the 150 M⊙ Binary Black Hole Merger GW190521
Astrophys. J.
1
900
L13
2020
GW190425: Observation of a Compact Binary Coalescence with Total Mass ∼ 3.4 M ⊙
Astrophys. J. Lett.
1
892
L3
2020
GW190521: A Binary Black Hole Merger with a Total Mass of 150 M⊙
Phys. Rev. Lett.
10
125
101102
2020
Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA
Living Rev. Relativ.
1
23
3
2020
Performance study of a high-power single-frequency fiber amplifier architecture for gravitational wave detectors
Appl. Optics
26
59
7945-7950
2020
Binary Black Hole Population Properties Inferred from the First and Second Observing Runs of Advanced LIGO and Advanced Virgo
Astrophys. J. Lett.
2
882
L24
2019
Search for Gravitational Waves from a Long-lived Remnant of the Binary Neutron Star Merger GW170817
Astrophys. J.
2
875
160
2019
Searches for Continuous Gravitational Waves from 15 Supernova Remnants and Fomalhaut b with Advanced LIGO
Astrophys. J.
2
875
122
2019
Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model
Phys. Rev. D
12
100
122002
2019
Searches for Gravitational Waves from Known Pulsars at Two Harmonics in 2015-2017 LIGO Data
Astrophys. J.
1
879
10
2019
Directional limits on persistent gravitational waves using data from Advanced LIGO’s first two observing runs
Phys. Rev. D
6
100
062001
2019
Tests of general relativity with the binary black hole signals from the LIGO-Virgo catalog GWTC-1
Phys. Rev. D
10
100
104036
2019
All-sky search for long-duration gravitational-wave transients in the second Advanced LIGO observing run
Phys. Rev. D
10
99
104033
2019
Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run
Phys. Rev. D
12
99
122002
2019
Search for Subsolar Mass Ultracompact Binaries in Advanced LIGO’s Second Observing Run
Phys. Rev. Lett.
16
123
161102
2019
All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO O2 data
Phys. Rev. D
2
100
024004
2019
Search for the isotropic stochastic background using data from Advanced LIGO’s second observing run
Phys. Rev. D
6
100
061101
2019
All-sky search for short gravitational-wave bursts in the second Advanced LIGO and Advanced Virgo run
Phys. Rev. D
2
100
024017
2019
Grating assisted glass fiber coupler for mode selective co-directional coupling
Opt. Lett.
9
44
2342-2345
2019
High power, single-frequency, monolithic fiber amplifier for the next generation of gravitational wave detectors
Opt. Express
20
27
28523-28533
2019
Zeitschriftenaufsatz (non-reviewed) (12)
Development of efficient CCC-fiber-based components for fiber lasers and amplifiers
SPIE Proceedings Vol. 11981: Fiber Lasers XIX: Technology and Systems
1198105
2022
CO2-laser based manufacturing of a few-mode all-fiber evanescent field coupler
Proceedings of the 9th EPS-QEOD Europhoton virtual conference
Fr-M1.4
2020
Low-noise, single-frequency 200 W fiber amplifier
SPIE Proceedings Vol. 11260: Fiber Lasers XVII: Technology and Systems
1126013
2020
Investigation of grating assisted mode-selective few-mode fused fiber couplers
Proc. Conference on Lasers and Electro-Optics & European Quantum Electronics Conference (CLEO®/Europe-EQEC 2019)
ci_5_6
2019
Characterization of the Monolithic Fiber Amplifier Engineering Prototype for the Next Generation of Gravitational Wave Detectors
SPIE Proceedings Vol. 10897: Fiber Lasers XVI: Technology and Systems
1089722
2019
Characterization and Long-Term Operation of a 200 W Single-Frequency Fiber Amplifier for Gravitational Wave Detectors
Laser + Produktion
ATu1A.5
2019
Manufacturing and characterization of asymmetric evanescent field polished fiber couplers for fiber grating assisted mode selective coupling
SPIE Proceedings Vol. 10681: Micro-Structured and Specialty Optical Fibres V
1068116
2018
Development of a reliable fabrication process of evanescent field coupled fused fiber couplers (Conference Presentation)
SPIE Proceedings Vol. 10683: Fiber Lasers and Glass Photonics: Materials through Applications
106831L
2018
Recent progress on monolithic fiber amplifiers for next generation of gravitational wave detectors
SPIE Proceedings Vol. 10512: Fiber Lasers XV: Technology and Systems
105120I
2018
Monolithic fiber amplifiers for the next generation of gravitational wave detectors
SPIE Proceedings Vol. 10683: Fiber Lasers and Glass Photonics: Materials through Applications
2018
1068320
Konferenzbeiträge (13)
Development of efficient CCC-fiber-based components for fiber lasers and amplifiers
SPIE Photonics West: LASE
22.-27. Januar
San Francisco
2022
High-power fiber amplifiers at 1.0µm and 1.5µm for the next generation of gravitational wave detectors
AMALDI14
19.-23. Juli
online
2021
Coherent beam combining of two single-frequency 200W fiber amplifiers for gravitational wave detectors
Photonics West: LASE
06.-11. März
online
2021
CO2-laser based micro-machining for fiber component manufacturing
Photonics West: LASE
06.-11. März
online
2021
Low-noise, single-frequency 200 W fiber amplifier
SPIE Photonics West: LASE
03.-06. Februar
San Francisco
2020
Investigation of grating assisted mode-selective few-mode fused fiber couplers
Conference on Lasers and Electro-Optics & European Quantum Electronics Conference (CLEO®/Europe-EQEC 2019)
23.-27. Juni
München
2019
Characterization and Long-Term Operation of a 200 W Single-Frequency Fiber Amplifier for Gravitational Wave Detectors
Laser Congress 2019 (ASSL, LAC, LS&C)
29. September - 03. Oktober
Wien
2019
Characterization of the Monolithic Fiber Amplifier Engineering Prototype for the Next Generation of Gravitational Wave Detectors
SPIE Photonics West: LASE
02.-07. Februar
San Francisco
2019
Development of a reliable fabrication process of evanescent field coupled fused fiber couplers
SPIE Photonics Europe
22.-26. April
Straßburg
2018
Entwicklung eines Herstellungsprozesses von faserbasierten Evaneszenzfeldkopplern
119. Jahrestagung der DGaO
22.-26. Mai
Aalen
2018
Monolithic fiber amplifiers for the next generation of gravitational wave detectors
SPIE Photonics Europe
22.-26. April
Straßburg
2018
Manufacturing and characterization of asymmetric evanescent field polished fiber couplers for fiber grating assisted mode selective coupling
SPIE Photonics Europe
22.-26. April
Straßburg
2018
Recent progress on monolithic fiber amplifiers for next generation of gravitational wave detectors
SPIE Photonics West: LASE
27. Januar - 01. Februar
San Francisco
2018