Advances in Optical Fiber-Based Faraday Rotation Diagnostics
In the past two years, we have used optical fiber-based Faraday Rotation Diagnostics (FRDs) to measure pulsed currents on several dozen capacitively driven and explosively driven pulsed power experiments. We have made simplifications to the necessary hardware for quadrature-encoded polarization analysis, including development of an all-fiber analysis scheme. We have developed a numerical model that is useful for predicting and quantifying deviations from the ideal diagnostic response. We have developed a method of analyzing quadrature-encoded FRD data that is simple to perform and offers numerous advantages over several existing methods. When comparison has been possible, we have seen good agreement with our FRDs and other current sensors.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 962804
- Report Number(s):
- LLNL-CONF-415198; TRN: US0902909
- Resource Relation:
- Conference: Presented at: 17th IEEE International Pulsed Power Conference, Washington DC, DC, United States, Jun 29 - Jul 02, 2009
- Country of Publication:
- United States
- Language:
- English
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