Details
| Original language | English |
|---|---|
| Pages (from-to) | 4831-4839 |
| Number of pages | 9 |
| Journal | Optics communications |
| Volume | 285 |
| Issue number | 24 |
| Early online date | 21 Aug 2012 |
| Publication status | Published - 1 Nov 2012 |
Abstract
In this paper methods to simulate the signals in laser interferometers are proposed. The central part deals with the computation of the photocurrent, subsequent phase demodulation and finally the generation of interferometer signals, such as the longitudinal phase readout, differential wavefront sensing signal, differential power sensing and contrast. Here, fundamental Gaussian beams without astigmatism are assumed. The methods are validated in several examples by comparison with experimental data, with analytical results as well as with an intuitively predictable system.
Keywords
- Differential wavefront sensing, Heterodyne, Homodyne, Interferometry, Phase demodulation, Simulation
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Chemistry(all)
- Physical and Theoretical Chemistry
- Engineering(all)
- Electrical and Electronic Engineering
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In: Optics communications, Vol. 285, No. 24, 01.11.2012, p. 4831-4839.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Methods for simulating the readout of lengths and angles in laser interferometers with Gaussian beams
AU - Wanner, Gudrun
AU - Heinzel, Gerhard
AU - Kochkina, Evgenia
AU - Mahrdt, Christoph
AU - Sheard, Benjamin S.
AU - Schuster, Sönke
AU - Danzmann, Karsten
PY - 2012/11/1
Y1 - 2012/11/1
N2 - In this paper methods to simulate the signals in laser interferometers are proposed. The central part deals with the computation of the photocurrent, subsequent phase demodulation and finally the generation of interferometer signals, such as the longitudinal phase readout, differential wavefront sensing signal, differential power sensing and contrast. Here, fundamental Gaussian beams without astigmatism are assumed. The methods are validated in several examples by comparison with experimental data, with analytical results as well as with an intuitively predictable system.
AB - In this paper methods to simulate the signals in laser interferometers are proposed. The central part deals with the computation of the photocurrent, subsequent phase demodulation and finally the generation of interferometer signals, such as the longitudinal phase readout, differential wavefront sensing signal, differential power sensing and contrast. Here, fundamental Gaussian beams without astigmatism are assumed. The methods are validated in several examples by comparison with experimental data, with analytical results as well as with an intuitively predictable system.
KW - Differential wavefront sensing
KW - Heterodyne
KW - Homodyne
KW - Interferometry
KW - Phase demodulation
KW - Simulation
UR - http://www.scopus.com/inward/record.url?scp=84867574880&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2012.07.123
DO - 10.1016/j.optcom.2012.07.123
M3 - Article
AN - SCOPUS:84867574880
VL - 285
SP - 4831
EP - 4839
JO - Optics communications
JF - Optics communications
SN - 0030-4018
IS - 24
ER -