Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 15937-15946 |
| Seitenumfang | 10 |
| Fachzeitschrift | Optics express |
| Jahrgang | 19 |
| Ausgabenummer | 17 |
| Publikationsstatus | Veröffentlicht - 15 Aug. 2011 |
Abstract
Interferometric gravitational wave detectors with an unequal and time-varying arm length configuration like the Laser Interferometer Space Antenna rely on time-delay interferometry (TDI) for laser frequency noise subtraction. However, the TDI algorithm requires a laser ranging scheme with meter accuracy over a five million kilometer arm length. At the end of each arm only about 100pW of light power will be detected for gravitational wave measurements and only 1% of this power can be used for laser ranging in order to avoid degradation in the phase stability of the science measurements. Here, we present the first experimental demonstration of such a ranging scheme at 1pW power levels using a Direct Sequence Spread Spectrum (DS/SS) modulation. This type of modulation also enables optical communication by encoding data with ranging signals and provides significant noise reduction against spurious interfering signals for bidirectional ranging. Experimental results show ranging measurements of 42 cm at 3 Hz and the viability of highly reliable data transfer at several kilobits per second.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
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in: Optics express, Jahrgang 19, Nr. 17, 15.08.2011, S. 15937-15946.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Experimental demonstration of weak-light laser ranging and data communication for LISA
AU - Esteban, Juan José
AU - García, Antonio F.
AU - Barke, Simon
AU - Peinado, Antonio M.
AU - Cervantes, Felipe Guzmán
AU - Bykov, Iouri
AU - Heinzel, Gerhard
AU - Danzmann, Karsten
PY - 2011/8/15
Y1 - 2011/8/15
N2 - Interferometric gravitational wave detectors with an unequal and time-varying arm length configuration like the Laser Interferometer Space Antenna rely on time-delay interferometry (TDI) for laser frequency noise subtraction. However, the TDI algorithm requires a laser ranging scheme with meter accuracy over a five million kilometer arm length. At the end of each arm only about 100pW of light power will be detected for gravitational wave measurements and only 1% of this power can be used for laser ranging in order to avoid degradation in the phase stability of the science measurements. Here, we present the first experimental demonstration of such a ranging scheme at 1pW power levels using a Direct Sequence Spread Spectrum (DS/SS) modulation. This type of modulation also enables optical communication by encoding data with ranging signals and provides significant noise reduction against spurious interfering signals for bidirectional ranging. Experimental results show ranging measurements of 42 cm at 3 Hz and the viability of highly reliable data transfer at several kilobits per second.
AB - Interferometric gravitational wave detectors with an unequal and time-varying arm length configuration like the Laser Interferometer Space Antenna rely on time-delay interferometry (TDI) for laser frequency noise subtraction. However, the TDI algorithm requires a laser ranging scheme with meter accuracy over a five million kilometer arm length. At the end of each arm only about 100pW of light power will be detected for gravitational wave measurements and only 1% of this power can be used for laser ranging in order to avoid degradation in the phase stability of the science measurements. Here, we present the first experimental demonstration of such a ranging scheme at 1pW power levels using a Direct Sequence Spread Spectrum (DS/SS) modulation. This type of modulation also enables optical communication by encoding data with ranging signals and provides significant noise reduction against spurious interfering signals for bidirectional ranging. Experimental results show ranging measurements of 42 cm at 3 Hz and the viability of highly reliable data transfer at several kilobits per second.
UR - http://www.scopus.com/inward/record.url?scp=80051756445&partnerID=8YFLogxK
U2 - 10.1364/OE.19.015937
DO - 10.1364/OE.19.015937
M3 - Article
AN - SCOPUS:80051756445
VL - 19
SP - 15937
EP - 15946
JO - Optics express
JF - Optics express
SN - 1094-4087
IS - 17
ER -