Details
| Original language | English |
|---|---|
| Title of host publication | Fiber Lasers XIX: Technology and Systems |
| Subtitle of host publication | PROCEEDINGS OF SPIE |
| Editors | Cesar Jauregui-Misas, V. R. Supradeepa |
| Publisher | SPIE |
| ISBN (electronic) | 9781510648333 |
| Publication status | Published - 4 Mar 2022 |
| Event | Fiber Lasers XIX: Technology and Systems 2022 - Virtual, Online Duration: 20 Feb 2022 → 24 Feb 2022 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 11981 |
| ISSN (Print) | 0277-786X |
| ISSN (electronic) | 1996-756X |
Abstract
Current research focuses on very-large-mode-area fibers (core diameters of 34 μm and above) and all-fiber laser systems to deliver high output power with linear polarization, low noise properties, narrow-band linewidth and high fundamental mode content. All-fiber systems have the advantage of low-maintenance and alignment-free operation. Because power scaling in fiber-based amplifiers is limited by non-linear effects like stimulated Brillouin scattering, very-large-mode-area fibers such as specialty fiber designs like the chirally coupled core (CCC) fiber are investigated. This fiber type offers a signal core of 34 μm or larger while also providing a near single-mode output beam quality. It thereby enables further power scaling in systems that are limited by such nonlinear effects. However, efficient components such as signal-pump-combiners (SPC) with this fiber type need to be developed. The SPC couples the required pump light of multiple high power laser diodes into the gain fiber of the laser system. We report on the development of a SPC with an integrated 34=250 μm feed-through CCCfiber with a pump-to-signal fiber coupling efficiency of 90% and three input pump fibers with a signal-to-pump isolation of 30 dB. The device is tested with an input power of up to 380 W. In addition, different experiments for monolithic implementation of the CCC-fiber type into systems that rely on standard polarization-maintaining (PM) fibers are conducted. We show the polarization maintaining behavior (polarization extinction ratio (PER) > 19 dB over several hours) of the fiber by imprinting externally induced birefringence on the fiber. Experiments with all-fiber setups using the CCC-fiber and a step-index PM-fiber show a PER of > 15 dB with reduced long-term stability.
Keywords
- CCC-fiber, Fiber-amplifier, fiber-based components, signal-pump-combiner
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Computer Science Applications
- Mathematics(all)
- Applied Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
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- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
Fiber Lasers XIX: Technology and Systems: PROCEEDINGS OF SPIE. ed. / Cesar Jauregui-Misas; V. R. Supradeepa. SPIE, 2022. 1198105 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11981).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Development of efficient CCC-fiber-based components for fiber lasers and amplifiers
AU - Brockmüller, Eike
AU - Lange, Tobias
AU - Wellmann, Felix
AU - Kimmelma, Ossi
AU - Lowder, Tyson
AU - Novotny, Steffen
AU - Lachmayer, Roland
AU - Neumann, Jörg
AU - Kracht, Dietmar
N1 - Funding Information: The authors would like to thank Prof. Willke of the Albert-Einstein-Institut Hannover for the successful and on-going cooperation in the field of single-frequency laser systems for GWDs. This research was partially funded by the Max-Planck-Institute for Gravitational Physics (Hanover, Germany) and partially funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy - EXC 2123 QuantumFrontiers 390837967.
PY - 2022/3/4
Y1 - 2022/3/4
N2 - Current research focuses on very-large-mode-area fibers (core diameters of 34 μm and above) and all-fiber laser systems to deliver high output power with linear polarization, low noise properties, narrow-band linewidth and high fundamental mode content. All-fiber systems have the advantage of low-maintenance and alignment-free operation. Because power scaling in fiber-based amplifiers is limited by non-linear effects like stimulated Brillouin scattering, very-large-mode-area fibers such as specialty fiber designs like the chirally coupled core (CCC) fiber are investigated. This fiber type offers a signal core of 34 μm or larger while also providing a near single-mode output beam quality. It thereby enables further power scaling in systems that are limited by such nonlinear effects. However, efficient components such as signal-pump-combiners (SPC) with this fiber type need to be developed. The SPC couples the required pump light of multiple high power laser diodes into the gain fiber of the laser system. We report on the development of a SPC with an integrated 34=250 μm feed-through CCCfiber with a pump-to-signal fiber coupling efficiency of 90% and three input pump fibers with a signal-to-pump isolation of 30 dB. The device is tested with an input power of up to 380 W. In addition, different experiments for monolithic implementation of the CCC-fiber type into systems that rely on standard polarization-maintaining (PM) fibers are conducted. We show the polarization maintaining behavior (polarization extinction ratio (PER) > 19 dB over several hours) of the fiber by imprinting externally induced birefringence on the fiber. Experiments with all-fiber setups using the CCC-fiber and a step-index PM-fiber show a PER of > 15 dB with reduced long-term stability.
AB - Current research focuses on very-large-mode-area fibers (core diameters of 34 μm and above) and all-fiber laser systems to deliver high output power with linear polarization, low noise properties, narrow-band linewidth and high fundamental mode content. All-fiber systems have the advantage of low-maintenance and alignment-free operation. Because power scaling in fiber-based amplifiers is limited by non-linear effects like stimulated Brillouin scattering, very-large-mode-area fibers such as specialty fiber designs like the chirally coupled core (CCC) fiber are investigated. This fiber type offers a signal core of 34 μm or larger while also providing a near single-mode output beam quality. It thereby enables further power scaling in systems that are limited by such nonlinear effects. However, efficient components such as signal-pump-combiners (SPC) with this fiber type need to be developed. The SPC couples the required pump light of multiple high power laser diodes into the gain fiber of the laser system. We report on the development of a SPC with an integrated 34=250 μm feed-through CCCfiber with a pump-to-signal fiber coupling efficiency of 90% and three input pump fibers with a signal-to-pump isolation of 30 dB. The device is tested with an input power of up to 380 W. In addition, different experiments for monolithic implementation of the CCC-fiber type into systems that rely on standard polarization-maintaining (PM) fibers are conducted. We show the polarization maintaining behavior (polarization extinction ratio (PER) > 19 dB over several hours) of the fiber by imprinting externally induced birefringence on the fiber. Experiments with all-fiber setups using the CCC-fiber and a step-index PM-fiber show a PER of > 15 dB with reduced long-term stability.
KW - CCC-fiber
KW - Fiber-amplifier
KW - fiber-based components
KW - signal-pump-combiner
UR - http://www.scopus.com/inward/record.url?scp=85131220078&partnerID=8YFLogxK
U2 - 10.1117/12.2608966
DO - 10.1117/12.2608966
M3 - Conference contribution
AN - SCOPUS:85131220078
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Fiber Lasers XIX: Technology and Systems
A2 - Jauregui-Misas, Cesar
A2 - Supradeepa, V. R.
PB - SPIE
T2 - Fiber Lasers XIX: Technology and Systems 2022
Y2 - 20 February 2022 through 24 February 2022
ER -