Longitudinal polarization-dependent coupling of light from an optical fiber to a side-bonded planar proximity detector: application to integrated azimuthally distributed multidetector photopolarimeters

Azzam, R. M. A.

doi:10.1109/68.62021

Cited by 9 publications

(5 citation statements)

References 15 publications

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“…However, the lack of convenient PD with high-performance limits the exploitation of polarization. Polarization analyzers based on conventional polarization detection methods, which include polarization interferometry or modulation detection [ 1 , 2 ], four probes distribution detection [ 3 ], and polarization amplitude detection [ 4 ], are difficult to adopt because of their complicated mechanical structure, and immense data processing. Electric vector, Jones vector, Stokes vector, and Poincare sphere, which are intricate and elusive, are usually adopted to describe the polarization of the incident waves [ 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

“…However, the system applied phase modulation, which requires a rigorous surrounding to control stray light, making this method unsuitable for detecting the polarization of high-speed and real-time signals because of its difficult structure adjustment, environmental sensitivity, and tedious calculation process. Azzam acquired the Stokes vector, which is adopted to reflect and describe polarization, by calculating the currents value of four photodiodes that were placed around the optical fiber, which can be detected directly and conveniently [ 3 ]. Nevertheless, this method has considerable limitations in expansion and understanding on account of the extremely stable work environment and accurately gauged photodiodes.…”

Section: Introductionmentioning

confidence: 99%

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An Omnidirectional Polarization Detector Based on a Metamaterial Absorber

Zhang

Duan

et al. 2016

Sensors

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The theory, design, simulation, fabrication, and performance of an omnidirectional polarization detector (PD) with two resonances located in the X and Ka ranges based on a metamaterial absorber (MMA) are presented in this paper. The sandwich structure of PD is composed of 0.1 μm periodic “I” shaped patches on the metasurface, a dielectric of 200 μm FR-4 on the interlayer, and a 0.3 μm copper film on the substrate. PD absorptivity is first used to reflect and describe the polarization of the incident wave. The numerical results, derived from the standard full wave finite integration technology (FIT) of CST 2015, indicates that the designed PD shows polarization sensitivity at all incidence angles. The effects on absorptivity produced by the incidence angles, polarization angles, and materials are investigated. The amplitude of absorptivity change caused by polarization reaches 99.802%. A laser ablation process is adopted to prepare the designed PD on a FR-4 board coated with copper on the double plane with a thickness that was 1/93 and 1/48 of wavelength at a resonance frequency of 16.055 GHz and 30.9 GHz, respectively. The sample test results verify the designed PD excellent detectability on the polarization of the incident waves. The proposed PD, which greatly enriches the applications of metamaterials in bolometers, thermal images, stealth materials, microstructure measurements, and electromagnetic devices, is easy to mass produce and market because of its strong detectability, ultrathin thickness, effective cost, and convenient process.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Omnidirectional Polarization Detector Based on a Metamaterial Absorber

Zhang

Duan

et al. 2016

Sensors

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“…To completely characterize a fiber-optic device, the state of polarization (SOP) must be known for the input and output light of the device. Because the conventional photopolarimeters are not compatible with the fiber-optic technology, in-line fiber-optic photopolarimeters (IFOPs) are of much recent interested [2][3][4][5]. The IFOPs will lead to more compact polarization-based fiber-optic sensors and controllers.…”

Section: Introductionmentioning

confidence: 99%

“…The first IFOPs were proposed by Azzam [2,3] as a fiber-optic analog of the fourdetector photopolarimeter [6]. The in-line SOP is measured by detectors placed along the fiber side.…”

Section: Introductionmentioning

confidence: 99%

<title>In-line fiber optic polarimeter using a fused 1 x 5 star coupler</title>

Lee¹,

Pan²,

Yang³

1996

Fiber Optic and Laser Sensors XIV

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A division-of-aperture in-line fiber-optic photopolarimeter using a 1x5 fused fiberoptic star coupler has been demonstrated. All five output beams of the star coupler have nearly identical states of polarization except that they have unknown orientations of optical axes. The photopolarimeter output is taken from one of the star coupler output beams, whose state of polarization is measured from the other four beams. The construction of the in-line photopolarimeter is identical to that of conventional ones except that the linear and circular analyzers are aligned with the respective beam optical axes determined from calibration. Such a system is compact, light weight, efficient, robust and inexpensive. The new photopolarimeter agrees within one percent with a HP 8509A offline photopolarimeter.

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“…波长范围也很大。但是其高昂的价格和对数据采集卡等设备的严格要求限制了它在国内的一些科研机构和高校的应用。Grant Nicholson 等[6] 提出使用一个检偏器，通过旋转检偏器的位置对偏振态进行检测，这种方法虽然简单，但只能直接得到斯托克斯矢量的 3 个分量。R. M. A. Azzam[7] 提出了一种侧面分布接触探测的方法，用 4 个光电二极管同时检测光纤包层中不同角度的倏逝波，提取光纤偏振态的 4 个斯托克斯参数。…”

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Measurement System of Stokes Parameters by Virtual Instrument

Libo¹,

Zhidong²,

Jun³

et al. 2010

激光与光电子学进展

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By the method of rotating quarter-wave plate, an automatic measurement system for the Stokes parameters of polarization state has been set up. It can process and display 15 polarization ellipses per second. The virtual instrument in this system consists of a data acquisition card and the LabVIEW software. The rotating angle is determined precisely by data interpolation and resample, so that the systematic error caused by the instability of rotating motor is depressed. The variation equation of transmitting light intensity with the rotating angle is deduced theoretically by Mueller matrix. The real-time acquired data is compared and fitted with the analytic equation. The coefficients of the variation equation and the correspondent Stokes parameters are given by Fourier transform. The field components and their phase difference of light wave are calculated. The distinction ratio, long axis orientation and spin-wise of polarization ellipse are determined. The influence of background noise on the measurement result is examined. The performances are compared between the two methods of rotating wave-plate and rotating analyzer.

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Longitudinal polarization-dependent coupling of light from an optical fiber to a side-bonded planar proximity detector: application to integrated azimuthally distributed multidetector photopolarimeters

Cited by 9 publications

References 15 publications

An Omnidirectional Polarization Detector Based on a Metamaterial Absorber

An Omnidirectional Polarization Detector Based on a Metamaterial Absorber

<title>In-line fiber optic polarimeter using a fused 1 x 5 star coupler</title>

Measurement System of Stokes Parameters by Virtual Instrument

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