• Media type: E-Article; Text
  • Title: Fiber modulators and fiber amplifiers for LISA
  • Contributor: Tröbs, Michael [Author]; Barke, S. [Author]; Möbius, J. [Author]; Engelbrecht, M. [Author]; Theeg, T. [Author]; Kracht, D. [Author]; Sheard, Benjamin [Author]; Heinzel, Gerhard [Author]; Danzmann, Karsten [Author]
  • Published: Bristol : IOP Publishing Ltd., 2010
  • Published in: Journal of Physics: Conference Series 228 (2010)
  • Issue: published Version
  • Language: English
  • DOI: https://doi.org/10.15488/1422; https://doi.org/10.1088/1742-6596/228/1/012042
  • ISSN: 1742-6588
  • Keywords: Gravitationswelle ; Fourier ; Differential phase ; Order of magnitude ; Optical amplifier ; Fiber amplifiers ; Pump power ; Phase noise ; Electrooptical modulators ; Light modulators ; Optical power ; Modulation frequencies ; Light amplifiers ; Fiber-coupled ; Gravitational effects ; Optical path lengths ; Phase characteristic ; Gravity waves ; Konferenzschrift
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  • Description: We present the sideband phase characteristics of a fiber-coupled integrated electro-optical modulator (EOM) at a modulation frequency of 2 GHz for Fourier frequencies from 0.1 mHz to 1 Hz. The upper phase noise limit was almost an order of magnitude better than required for LISA. The EOM's phase dependencies on temperature and transmitted optical power were measured and found to be uncritical. Additionally we have investigated three optical amplifiers emitting 1 W. Their differential phase noise and optical pathlength noise as one contribution to differential phase noise were measured. The measured differential phase noise was within the requirement. The dependencies of differential phase noise on pump power were measured and requirements for the operation of the amplifier on the LISA satellite derived. ; DLR/50 OQ 0601 ; DFG/EXC/QUEST
  • Access State: Open Access
  • Rights information: Attribution (CC BY)