Details
| Original language | English |
|---|---|
| Pages (from-to) | 10140-10149 |
| Number of pages | 10 |
| Journal | Optics express |
| Volume | 29 |
| Issue number | 7 |
| Early online date | 16 Mar 2021 |
| Publication status | Published - 29 Mar 2021 |
Abstract
Design studies for the next generation of interferometric gravitational wave detectors propose the use of low-noise single-frequency high power laser sources at 1064 nm. Fiber amplifiers are a promising design option because of their high output power and excellent optical beam properties. We performed filled-aperture coherent beam combining with independently amplified beams from two low-noise high-power single-frequency fiber amplifiers to further scale the available optical power. An optical power of approximately 400 W with a combining efficiency of more than 93% was achieved. The combined beam contained 370 W of linearly polarized TEM00-mode and was characterized with respect to the application requirements of low relative power noise, relative beam pointing noise, and frequency noise. The noise performance of the combined beam is comparable to the single amplifier noise. This represents, to our knowledge, the highest measured power in the TEM00-mode of single frequency signals that fulfills the low noise requirements of gravitational wave detectors.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Optics express, Vol. 29, No. 7, 29.03.2021, p. 10140-10149.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Low noise 400 W coherently combined single frequency laser beam for next generation gravitational wave detectors
AU - Wellmann, Felix
AU - Bode, Nina
AU - Wessels, Peter
AU - Overmeyer, Ludger
AU - Neumann, Jörg
AU - Willke, Benno
AU - Kracht, Dietmar
N1 - Funding Information: Deutsche Forschungsgemeinschaft (EXC2123 QuantumFrontiers 390837967).
PY - 2021/3/29
Y1 - 2021/3/29
N2 - Design studies for the next generation of interferometric gravitational wave detectors propose the use of low-noise single-frequency high power laser sources at 1064 nm. Fiber amplifiers are a promising design option because of their high output power and excellent optical beam properties. We performed filled-aperture coherent beam combining with independently amplified beams from two low-noise high-power single-frequency fiber amplifiers to further scale the available optical power. An optical power of approximately 400 W with a combining efficiency of more than 93% was achieved. The combined beam contained 370 W of linearly polarized TEM00-mode and was characterized with respect to the application requirements of low relative power noise, relative beam pointing noise, and frequency noise. The noise performance of the combined beam is comparable to the single amplifier noise. This represents, to our knowledge, the highest measured power in the TEM00-mode of single frequency signals that fulfills the low noise requirements of gravitational wave detectors.
AB - Design studies for the next generation of interferometric gravitational wave detectors propose the use of low-noise single-frequency high power laser sources at 1064 nm. Fiber amplifiers are a promising design option because of their high output power and excellent optical beam properties. We performed filled-aperture coherent beam combining with independently amplified beams from two low-noise high-power single-frequency fiber amplifiers to further scale the available optical power. An optical power of approximately 400 W with a combining efficiency of more than 93% was achieved. The combined beam contained 370 W of linearly polarized TEM00-mode and was characterized with respect to the application requirements of low relative power noise, relative beam pointing noise, and frequency noise. The noise performance of the combined beam is comparable to the single amplifier noise. This represents, to our knowledge, the highest measured power in the TEM00-mode of single frequency signals that fulfills the low noise requirements of gravitational wave detectors.
UR - http://www.scopus.com/inward/record.url?scp=85102659413&partnerID=8YFLogxK
U2 - 10.1364/OE.420350
DO - 10.1364/OE.420350
M3 - Article
C2 - 33820147
AN - SCOPUS:85102659413
VL - 29
SP - 10140
EP - 10149
JO - Optics express
JF - Optics express
SN - 1094-4087
IS - 7
ER -