Temperature dependence of the Verdet constant in several diamagnetic glasses

Williams, Paul; Rose, Allen; Day, Gordon W.; Milner, Thomas E.; Deeter, Merritt N.

doi:10.1364/ao.30.001176

Cited by 119 publications

(50 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A National Instruments 1 data-logger data acquisition device was used in conjunction with LabVIEW 1 software to interface the output of the lock in amplifier to a computer in order to accurately record and maintain data. Initial measurements of Verdet constant on known magneto-optic glasses such as BK-7 and SF-57 in our setup yielded an accuracy of 6% when compared with published values [24][25][26].…”

Section: Experimental Setup For Measurement Of Faraday Rotationmentioning

confidence: 66%

Ferric oxide quantum dots in stable phosphate glass system and their magneto-optical study

Garaje

Apte

Kumar

et al. 2013

Materials Research Bulletin

View full text Add to dashboard Cite

Section: Experimental Setup For Measurement Of Faraday Rotationmentioning

confidence: 66%

Ferric oxide quantum dots in stable phosphate glass system and their magneto-optical study

Garaje

Apte

Kumar

et al. 2013

Materials Research Bulletin

View full text Add to dashboard Cite

“…8 In general, it can be established that the Verdet constants of diamagnetic glasses are nearly independent of temperature, 25 but, in fact, temperature drifts affects them. 26 A major effect is the change induced by temperature in the residual birefringence of an OCS based on Faraday effect. For temperature compensation, some solutions, such as the use of a temperature probe in the sensor head 27 or with methods based on signal processing, 28 have been presented.…”

Section: Discussionmentioning

confidence: 99%

Micromachined optical fiber current sensor

Heredero¹,

Caleya²,

Guerrero³

et al. 1999

Appl. Opt.

View full text Add to dashboard Cite

We describe a micromachined optical fiber current sensor. The sensing element consists of a squared silicon membrane ͑8 mm long and 20 m thick͒ that has a cylindrical permanent magnet ͑NdFeB alloy, 3-mm diameter, 1.5 mm high͒ fixed on its central region. This structure allows the permanent magnet to vibrate in the presence of the magnetic field gradient generated by an ac. A linear relation between the electrical current and the magnet displacement was measured with white-light interferometry with an optical fiber low-finesse Fabry-Perot microcavity. A measurement range of 0 -70 A and a minimum detectable intensity of 20 mA were obtained when distance D between the membrane and the electrical power line was 5 mm. The output signal directly shows a linear response with distance D.

show abstract

“…Also, is the thermal expansion coefficient of silica glass (0.55 10 6 / C [34]) and the temperature dependence of the Verdet constant is 69 10 6 / C [35]. The temperature dependence of dominates the second through fourth harmonic signals' temperature dependence.…”

Section: A Polarimetric Sensorsmentioning

confidence: 99%

Optical fiber current sensors in high electric field environments

Rose

Etzel

Rochford

1999

J. Lightwave Technol.

View full text Add to dashboard Cite

Abstract-This paper analyzes the response of optical fiber current sensors that are subjected to high electric fields, such as fields encountered in gas-insulated systems. This paper shows that through the electrooptic (EO) Kerr effect, these fields can cause harmonic distortion of the measured ac current waveform. This harmonic distortion was confirmed experimentally. Also, this paper shows that it is possible to simultaneously measure both current and voltage waveforms and the phase between them using this effect. To minimize the electrooptic Kerr effect, optical fiber current sensors must be screened from high-electric fields.Index Terms-Electric field effects, electrooptic Kerr effect, gas insulated systems, optical fiber current sensor, polarimetric, Sagnac.

show abstract

Temperature dependence of the Verdet constant in several diamagnetic glasses

Abstract: Measured temperature dependences of the Verdet constants of SiO(2), SF-57, and BK-7 are approximately 10(-4)/K within 3-20% of Becquerel formula estimates.

Cited by 119 publications

References 6 publications

Ferric oxide quantum dots in stable phosphate glass system and their magneto-optical study

Ferric oxide quantum dots in stable phosphate glass system and their magneto-optical study

Micromachined optical fiber current sensor

Optical fiber current sensors in high electric field environments

Contact Info

Product

Resources

About