An Ultrawideband Current Sensor Based on the Faraday Effect in Semimagnetic Semiconductors

N. J. Copner; M. F. Lewis; D. M. Parkes; K. Trafford; R. L.S. Devine; C. Whitehead; A. D.R. Phelps

doi:10.1117/12.205001

An Ultrawideband Current Sensor Based on the Faraday Effect in Semimagnetic Semiconductors

N. J. Copner, M. F. Lewis, D. M. Parkes, K. Trafford, R. L.S. Devine, C. Whitehead, A. D.R. Phelps

Research output: Contribution to journal › Article › peer-review

Abstract

Very fast current transients (10 A, 5 GHz) have been measured using the Faraday rotation in CdMnTe sample. RF magnetic fields with an amplitude of 10 G have been measured, despite the laser intensity noise (at these bandwidths) and the noisy environments. This paper describes a technique whereby the insertion loss is minimised and the effect of the laser intensity noise reduced, enabling these small RF fields to be measured for the first time.

Original language	English
Pages (from-to)	121-128
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	2374
DOIs	https://doi.org/10.1117/12.205001
Publication status	Published - 03 Mar 1995
Externally published	Yes
Event	Novel Applications of Lasers and Pulsed Power 1995 - San Jose, United States of America Duration: 01 Feb 1995 → 28 Feb 1995

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abstract = "Very fast current transients (10 A, 5 GHz) have been measured using the Faraday rotation in CdMnTe sample. RF magnetic fields with an amplitude of 10 G have been measured, despite the laser intensity noise (at these bandwidths) and the noisy environments. This paper describes a technique whereby the insertion loss is minimised and the effect of the laser intensity noise reduced, enabling these small RF fields to be measured for the first time.",

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AU - Parkes, D. M.

AU - Trafford, K.

AU - Devine, R. L.S.

AU - Whitehead, C.

AU - Phelps, A. D.R.

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AB - Very fast current transients (10 A, 5 GHz) have been measured using the Faraday rotation in CdMnTe sample. RF magnetic fields with an amplitude of 10 G have been measured, despite the laser intensity noise (at these bandwidths) and the noisy environments. This paper describes a technique whereby the insertion loss is minimised and the effect of the laser intensity noise reduced, enabling these small RF fields to be measured for the first time.

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JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Novel Applications of Lasers and Pulsed Power 1995

Y2 - 1 February 1995 through 28 February 1995

ER -

An Ultrawideband Current Sensor Based on the Faraday Effect in Semimagnetic Semiconductors

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