Details
| Original language | English |
|---|---|
| Article number | 012020 |
| Journal | Journal of Physics: Conference Series |
| Volume | 154 |
| Early online date | 20 Apr 2009 |
| Publication status | Published - 2009 |
| Externally published | Yes |
| Event | 7TH INTERNATIONAL LISA SYMPOSIUM - Barcelona, Spain Duration: 16 Jun 2008 → 20 Jun 2008 |
Abstract
This paper presents the implementation of an analog optical phase-locked-loop with an offset frequency of about 20MHz between two lasers, where the detected light powers were of the order of 31 pW and 200 μW. The goal of this setup was the design and characterization of a photodiode transimpedance amplifier for application in LISA. By application of a transimpedance amplifier designed to have low noise and low power consumption, the phase noise between the two lasers was a factor of two above the shot noise limit down to 60mHz. The achievable phase sensitivity depends ultimately on the available power of the highly attenuated master laser and on the input current noise of the transimpedance amplifier of the photodetector. The limiting noise source below 60mHz was the analog phase measurement system that was used in this experiment. A digital phase measurement system that is currently under development at the AEI will be used in the near future. Its application should improve the sensitivity.
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In: Journal of Physics: Conference Series, Vol. 154, 012020, 2009.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Analog phase lock between two lasers at LISA power levels
AU - Diekmann, Christian
AU - Steier, Frank
AU - Sheard, Benjamin
AU - Heinzel, Gerhard
AU - Danzmann, Karsten
PY - 2009
Y1 - 2009
N2 - This paper presents the implementation of an analog optical phase-locked-loop with an offset frequency of about 20MHz between two lasers, where the detected light powers were of the order of 31 pW and 200 μW. The goal of this setup was the design and characterization of a photodiode transimpedance amplifier for application in LISA. By application of a transimpedance amplifier designed to have low noise and low power consumption, the phase noise between the two lasers was a factor of two above the shot noise limit down to 60mHz. The achievable phase sensitivity depends ultimately on the available power of the highly attenuated master laser and on the input current noise of the transimpedance amplifier of the photodetector. The limiting noise source below 60mHz was the analog phase measurement system that was used in this experiment. A digital phase measurement system that is currently under development at the AEI will be used in the near future. Its application should improve the sensitivity.
AB - This paper presents the implementation of an analog optical phase-locked-loop with an offset frequency of about 20MHz between two lasers, where the detected light powers were of the order of 31 pW and 200 μW. The goal of this setup was the design and characterization of a photodiode transimpedance amplifier for application in LISA. By application of a transimpedance amplifier designed to have low noise and low power consumption, the phase noise between the two lasers was a factor of two above the shot noise limit down to 60mHz. The achievable phase sensitivity depends ultimately on the available power of the highly attenuated master laser and on the input current noise of the transimpedance amplifier of the photodetector. The limiting noise source below 60mHz was the analog phase measurement system that was used in this experiment. A digital phase measurement system that is currently under development at the AEI will be used in the near future. Its application should improve the sensitivity.
UR - http://www.scopus.com/inward/record.url?scp=66149108822&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/154/1/012020
DO - 10.1088/1742-6596/154/1/012020
M3 - Conference article
AN - SCOPUS:66149108822
VL - 154
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
M1 - 012020
T2 - 7TH INTERNATIONAL LISA SYMPOSIUM
Y2 - 16 June 2008 through 20 June 2008
ER -