Highly stable fiber lasers for satellite-based gravitational measurements
Proceedings of SPIE(2019)
摘要
For studies of the European Space Agency ESA, Fraunhofer ILT develops and builds narrowband, power-stabilized fundamental mode fiber amplifiers especially for future space-based gravitational-wave detectors, e.g. LISA, and for Earth gravity field missions. In this paper, we present the status of our ongoing work, based on a highly stable fiber amplifier designed for a Next Generation Gravity field Mission (NGGM) pre-study, towards power scaling as well as enhancement of the Technology Readiness Level (TRL). Our amplifier has already demonstrated to meet the requirements for future gravity field missions. It features a design that is free of stimulated Brillouin scattering (SBS) and a feedback loop for power stabilization.
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关键词
Fiber Laser,Fiber Amplifier,Semiconductor Amplifier,Low-Noise,Relative Intensity Noise,Narrow Linewidth,LISA,NGGM
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