Simultaneous measurement of retardance and fast axis angle of a quarter-wave plate using one photoelastic modulator

Zeng, Aijun; Li, Fanyue; Zhu, Linglin; Huang, Huijie

doi:10.1364/ao.50.004347

Cited by 41 publications

(11 citation statements)

References 22 publications

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“…The means are both close to the labeled value of 87.73 • . The results are with larger deviations than the previous report [25], where, a deviation less than one degree was obtained, and this may mostly come from the poor repetition of manual rotation of WP in measuring the four SOP trajectories.…”

Section: Measurement Of Retardance Of a Quarter Wave-platecontrasting

confidence: 80%

“…The statistics of the estimated α, δ and φ with respect to the different number of used SOPs at n=6, 10,15,20,25,30, 37 for the case 1 are shown in Figures 6(a), (b) and (c) respectively, and the corresponding STDs of the three parameters are given in Figure 6(d). For each n, 15 estimation routings are conducted by choosing n SOPs from the measured 37 SOPs in an uniformly-random way for each estimation routing.…”

Section: Measurement Of Polarization Parameters Of a Coiled-fiber Pcmentioning

confidence: 99%

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Measurement of physical polarization parameters by system estimation

Wang

Zhang

et al. 2013

Journal of Modern Optics

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The system estimation by least squares optimization is employed to obtain physical polarization parameters of optical devices. The method is proved flexible and convenient for measuring polarization parameters in different systems where the input state of polarization (SOP) of the devices is either measurable or not, providing the analytical estimation equations and adequate measurements are available. The estimation error for the measurement system with a rotating wave-plate (WP) as the polarization state generator is analyzed and simulated. Better estimation precision can be obtained by involving more SOP measurements in estimations and choosing a WP with retardance around 3π /4. Two experiments are demonstrated. One is to estimate the polarization parameters of a fiber polarization controller with measurable input SOP, and the other is to measure the retardance of a glass quarter-wave plate whose input SOP is immeasurable. The standard deviations of estimated polarization parameters are within 0.0011-0.0103.

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Section: Measurement Of Retardance Of a Quarter Wave-platecontrasting

confidence: 80%

Section: Measurement Of Polarization Parameters Of a Coiled-fiber Pcmentioning

confidence: 99%

Measurement of physical polarization parameters by system estimation

Wang

Zhang

et al. 2013

Journal of Modern Optics

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“…In the sensitive SERF atomic magnetometer, extreme small optical rotation angles need to be detected [12]. Among various methods for detecting the rotation angle [11], the polarization modulation technique based on a photoelastic modulator (PEM) has the highest sensitivity and accuracy owing to the PEM s unique optical properties, such as high modulation purity and efficiency, high power handing capability, large acceptance angle, large useful aperture and good retardation stability [13][14][15]. In SERF atomic magnetometer, the detection of optical rotation angle based on the PEM polarization modulation is preferred because it features lower noise especially at low frequency range and better stability at long-time scales [11].…”

Section: Introductionmentioning

confidence: 99%

Light intensity stabilization based on the second harmonic of the photoelastic modulator detection in the atomic magnetometer

Duan

Fang

et al. 2015

Opt. Express

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The fluctuations of the probe light intensity seriously affect the performance of the sensitive atomic magnetometer. Here we propose a novel method for the intensity stabilization based on the second harmonic component of the photoelastic modulator (PEM) detection in the atomic magnetometer. The method not only could be used to eliminate the intensity fluctuations of the laser source, but also remove the fluctuations from the optical components caused by the environment. A relative fluctuation of the light intensity of 0.035% was achieved and the corresponding fluctuation of the output signal of the atomic magnetometer has decreased about two orders of magnitude from 4.06% to 0.041%. As the scheme proposed here only contains optical devices and does not require additional feedback controlled equipments, it is especially suitable for the integration of the atomic magnetometer.

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“…They are the phase modulation method [6,7], the intensity determination method [8,9], and the compensator-based method [10,11]. The phase modulation method employs the phase modulator to measure the retardation.…”

Section: Introductionmentioning

confidence: 99%

Real-time Measurement of Full Field Retardation Near Quarter Wavelength

Liu¹,

Zeng²,

Qiao³

et al. 2012

Journal of the Optical Society of Korea

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A real-time method to measure full field retardation near quarter wavelength is proposed. The circularly polarized beam passes through a sample with a large aperture. The measuring beam then goes through a quarter-wave plate and is then split by a Wollaston prism. An image with two sub-images is then detected by a high-speed image sensor. The full field retardation near quarter wavelength can be obtained in real time by processing the image. The measured retardation is independent of the fast axis angle of the sample and the fluctuation of the initial intensity. In experiments, a wedge waveplate is measured with different fast axis angle and initial intensity, and the full field retardations are acquired. The maximum and standard deviation of the full field retardation is 1.5° and 0.4°. The validity of the method is verified.

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Simultaneous measurement of retardance and fast axis angle of a quarter-wave plate using one photoelastic modulator

Cited by 41 publications

References 22 publications

Measurement of physical polarization parameters by system estimation

Measurement of physical polarization parameters by system estimation

Light intensity stabilization based on the second harmonic of the photoelastic modulator detection in the atomic magnetometer

Real-time Measurement of Full Field Retardation Near Quarter Wavelength

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