Temperature Drift Compensation of a Potential Transformer using a BSO Pockels Cell

Niewisch, J.; Menke, Peter; Krammer, P.; Bosselmann, T.

doi:10.1364/ofs.1996.we15

Cited by 7 publications

(4 citation statements)

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“…1-5,8 -10 The temperature sensitivity of a phase plate is well known. 7,14 We consider the quartz-made quarter-wave plate of zero order. The thickness ͑L͒ of this plate is 24 m at 850-nm wavelength.…”

Section: B Reduction Of Temperature Sensitivitymentioning

confidence: 99%

“…where ⌬n ϭ 0.00885 is the quartz birefringence at ϭ 850 nm, ␥ ϭ 1.4 ϫ 10 Ϫ4°CϪ1 is the constant that determines the changes of birefringence with temperature, 7 and ⌬T ϭ 100°C is the temperature range. Note that we neglected thermal expansion in Eq.…”

Section: B Reduction Of Temperature Sensitivitymentioning

confidence: 99%

“…In general, attention is paid to the temperature stability of crystal parameters. 1,2,6,[7][8][9] There are other optical elements inside the sensor, such as quarter-wave plates, 10 that are sensitive to temperature changes. The changes in birefringence with temperature in this element causes the strong variation of the sensor's sensitivity.…”

Section: Introductionmentioning

confidence: 99%

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Fiber-optic voltage sensor based on a Bi_12TiO_20 crystal

et al. 2000

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A fiber-optic voltage sensor based on the longitudinal Pockels effect in a Bi(12)TiO(20) crystal is described. The use of a special backreflecting prism as a phase-retarding element is shown to improve the sensitivity and temperature stability of the sensor. A comparison between the temperature properties of the glass backreflecting prism and that of a quarter-wave plate is derived. The sensor demonstrates temperature stability of +/-1.5% from -20 degrees C to 60 degrees C and sensitivity of 0.145% per 1 V(rms) at 850 nm without the use of an additional temperature control channel.

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Section: B Reduction Of Temperature Sensitivitymentioning

confidence: 99%

Section: B Reduction Of Temperature Sensitivitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fiber-optic voltage sensor based on a Bi_12TiO_20 crystal

et al. 2000

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“…Although the reported sensitivity in these papers is not small (0.039% and 0.051% per 1 Vrms [5,8]), an extra channel is needed to compensate for the voltage dependence on the temperature. To decrease this dependence, Lee [9] proposed to remove the intrinsic linear birefringence of a BGO crystal by annealing; Niewisch et al [10] used a numerical algorithm, in which a linear polynomial is adequate to achieve the desired compensation; Koch et al [11] proposed to change the crystal orientation for the same objective. On the other hand, Seat and Sharp [12] fabricated a single-crystal sapphire fibre codoped that has been used to sense temperature with high stability.…”

Section: Introductionmentioning

confidence: 99%

An electro-optic fibre sensor with double pass configuration for measuring high ac voltage

Peña-Lecona

Mosiño

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et al. 2004

Meas. Sci. Technol.

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A new fibre optic sensor suitable for high voltage measurements is introduced. The sensor is based on a double pass configuration of light through a Bi12TiO20 (BTO) photorefractive crystal. To obtain the double pass configuration, a back-reflecting prism with high stability to temperature variations is incorporated in the sensor head. The prism enhances the performance of the sensor allowing the BTO to work in a wide linear region of its transfer function. To prove the feasibility of our fibre optic sensor, one ac periodic wave and transient event of high voltage were measured and reported. The sensor is proved to be robust, linear, and shows high resolution in the detection of voltage impulses.

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