Influences of linear birefringence on bulk glass current sensors with return-back optical paths

Zhengping Wang; Xiaoyu Liu; Zongjun Huang

doi:10.1117/12.723716

18 June 2007 Influences of linear birefringence on bulk glass current sensors with return-back optical paths

Zhengping Wang, Xiaoyu Liu, Zongjun Huang

Proceedings Volume 6616, Optical Measurement Systems for Industrial Inspection V; 66161Q (2007) https://doi.org/10.1117/12.723716
Event: Optical Metrology, 2007, Munich, Germany

Abstract

The effects of linear birefringence (LB) upon Bulk Glass Optical Current Sensors (BGOCSs) with return-back optical path designs, such as the Orthoconjugate Reflection (OCR)-typed, the Direct Reflection (DR)-typed and the Roof-prism Reflection (RPR)-typed BGOCS design, are theoretically analyzed and compared with that of the BGOCS with a single-loop optical path in this paper. The results show that the return-back dual-loop current sensing designs with conventional signal processing scheme of "-/+" cannot eliminate the harmful effects of the LB thoroughly, if suitable signal processing schemes which can separate the LB from Faraday effect are not used.

Citation Download Citation

Zhengping Wang, Xiaoyu Liu, and Zongjun Huang "Influences of linear birefringence on bulk glass current sensors with return-back optical paths", Proc. SPIE 6616, Optical Measurement Systems for Industrial Inspection V, 66161Q (18 June 2007); https://doi.org/10.1117/12.723716

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