Details
| Original language | English |
|---|---|
| Title of host publication | Fiber Lasers XVII |
| Subtitle of host publication | Technology and Systems |
| Editors | Liang Dong |
| Publisher | SPIE |
| ISBN (electronic) | 9781510632837 |
| Publication status | Published - 21 Feb 2020 |
| Event | Fiber Lasers XVII: Technology and Systems 2020 - San Francisco, United States Duration: 3 Feb 2020 → 6 Feb 2020 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 11260 |
| ISSN (Print) | 0277-786X |
| ISSN (electronic) | 1996-756X |
Abstract
Gravitational wave detectors require single-frequency laser sources with challenging properties regarding beam quality, polarization, and noise properties. We developed a single-frequency fiber amplifier engineering prototype based on standard step-index polarization maintaining fibers and characterized the 200 W output beam with the complete set of measurements necessary to evaluate the system's performance with respect to the application requirements. The output beam has a TEM00-mode content of 94:8% at 200W and a polarization extinction ratio of 19 dB. In the crucial frequency range from 1 Hz to 100 kHz the frequency noise, relative power noise, and relative pointing noise measurements demonstrated low noise properties. In addition, the pointing noise below 100 Hz is the lowest reported for single-frequency amplifiers with 200W output power. SBS-free operation was demonstrated by monitoring the relative power noise in the MHz frequency range. The system was operated above 200W for 695 h and evaluated again after 650 h of operation. No signs of photodarkening were found.
Keywords
- Fiber amplifier, Gravitational wave detectors, High-power, Low-noise, Single-frequency
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 XVII: Technology and Systems. ed. / Liang Dong. SPIE, 2020. 1126013 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11260).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Low-noise, single-frequency 200 W fiber amplifier
AU - Wellmann, Felix
AU - Steinke, Michael
AU - Meylahn, Fabian
AU - Bode, Nina
AU - Willke, Benno
AU - Overmeyer, Ludger
AU - Weßels, Peter
AU - Neumann, Jörg
AU - Kracht, DIetmar
PY - 2020/2/21
Y1 - 2020/2/21
N2 - Gravitational wave detectors require single-frequency laser sources with challenging properties regarding beam quality, polarization, and noise properties. We developed a single-frequency fiber amplifier engineering prototype based on standard step-index polarization maintaining fibers and characterized the 200 W output beam with the complete set of measurements necessary to evaluate the system's performance with respect to the application requirements. The output beam has a TEM00-mode content of 94:8% at 200W and a polarization extinction ratio of 19 dB. In the crucial frequency range from 1 Hz to 100 kHz the frequency noise, relative power noise, and relative pointing noise measurements demonstrated low noise properties. In addition, the pointing noise below 100 Hz is the lowest reported for single-frequency amplifiers with 200W output power. SBS-free operation was demonstrated by monitoring the relative power noise in the MHz frequency range. The system was operated above 200W for 695 h and evaluated again after 650 h of operation. No signs of photodarkening were found.
AB - Gravitational wave detectors require single-frequency laser sources with challenging properties regarding beam quality, polarization, and noise properties. We developed a single-frequency fiber amplifier engineering prototype based on standard step-index polarization maintaining fibers and characterized the 200 W output beam with the complete set of measurements necessary to evaluate the system's performance with respect to the application requirements. The output beam has a TEM00-mode content of 94:8% at 200W and a polarization extinction ratio of 19 dB. In the crucial frequency range from 1 Hz to 100 kHz the frequency noise, relative power noise, and relative pointing noise measurements demonstrated low noise properties. In addition, the pointing noise below 100 Hz is the lowest reported for single-frequency amplifiers with 200W output power. SBS-free operation was demonstrated by monitoring the relative power noise in the MHz frequency range. The system was operated above 200W for 695 h and evaluated again after 650 h of operation. No signs of photodarkening were found.
KW - Fiber amplifier
KW - Gravitational wave detectors
KW - High-power
KW - Low-noise
KW - Single-frequency
UR - http://www.scopus.com/inward/record.url?scp=85083722178&partnerID=8YFLogxK
U2 - 10.1117/12.2543292
DO - 10.1117/12.2543292
M3 - Conference contribution
AN - SCOPUS:85083722178
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Fiber Lasers XVII
A2 - Dong, Liang
PB - SPIE
T2 - Fiber Lasers XVII: Technology and Systems 2020
Y2 - 3 February 2020 through 6 February 2020
ER -