Sorting and detecting orbital angular momentum states by using a Dove prism embedded Mach–Zehnder interferometer and amplitude gratings

Gao, Chunqing; Qi, Xiaoqing; Liu, Yidong; Xin, Jingtao; Wang, Lei

doi:10.1016/j.optcom.2010.08.083

Cited by 44 publications

(28 citation statements)

References 20 publications

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“…Measurement of the OAM of a beam can be accomplished in a number of ways, including an interferometric arrangement that sorts different l values into different outgoing spatial modes [65][66][67] and sorting by means of q-plates [68] (devices which couple the OAM to the polarization), as well as by use of polarizing Sagnac interferometers [69], pinhole arrangements followed by Fouriertransforming lenses [70], and specialized refractive elements [71][72][73] As was mentioned earlier, the most common way to produce entangled photons is via spontaneous parametric down conversion (SPDC) in a χ 2 nonlinear crystal. In this process, interactions with the crystal lattice cause a high frequency photon from the incident beam (called the pump beam) to split into two lower frequency photons (called, for historical reasons, the signal and idler).…”

Section: Angular and Rotational Measurementsmentioning

confidence: 99%

Quantum Sensors: Improved Optical Measurement via Specialized Quantum States

Simon

2016

Journal of Sensors

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Classical measurement strategies in many areas are approaching their maximum resolution and sensitivity levels, but these levels often still fall far short of the ultimate limits allowed by the laws of physics. To go further, strategies must be adopted that take into account the quantum nature of the probe particles and that optimize their quantum states for the desired application. Here we review some of these approaches, in which quantum entanglement, the orbital angular momentum of single photons, and quantum interferometry are used to produce optical measurements beyond the classical limit.

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Section: Angular and Rotational Measurementsmentioning

confidence: 99%

Quantum Sensors: Improved Optical Measurement via Specialized Quantum States

Simon

2016

Journal of Sensors

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“…The displacement of the DSM along the horizontal axis produces an OPD and changes the signals of the interferogram onto the detector. The image rotator, which could be a Pechan prism, a Dove prism, a K-shape prism [12,13], or a reflecting mirror-group, rotates the beam into another orientation. The image rotator in Fig.…”

Section: Optical Layout Designmentioning

confidence: 99%

A tilt-compensated Fourier transform spectrometer with an image rotator

Wei

Yin

2015

Optics Communications

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“…It has been demonstrated that beams with a helical phase Φ = lθ carries an Orbital Angular Momentum (OAM) lh. 8,9 Inspired by methods to determine the OAM, [10][11][12] we plan to use the specific phase pattern produced by the AGPM and an interferometer based on Dove prisms to improve the rejection at the detector as proposed by Riaud et al . The goal of the Dove prisms is to induce a rotation of the incident electric field (see Figure 2).…”

Section: Introductionmentioning

confidence: 99%

A Mach-Zehnder interferometer based on orbital angular momentum for improved vortex coronagraph efficiency

Piron

Delacroix²,

Huby

et al. 2015

SPIE Proceedings

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The Annular Groove Phase Mask (AGPM) is a vectorial vortex phase mask. It acts as a half-wave plate with a radial fast axis orientation operating in the mid infrared domain. When placed at the the focus of a telescope element provides a continuous helical phase ramp for an on axis sources, which creates the orbital angular momentum. Thanks to that phase, the intensity of the central source is canceled by a down-stream pupil stop, while the off axis sources are not affected. However due to experimental conditions the nulling is hardly perfect. To improve the null, a Mach-Zehnder interferometer containing Dove prisms differently oriented can be proposed to sort out light based on its orbital angular momentum (OAM). Thanks to the differential rotation of the beam, a π phase shift is achieved for the on axis light affected by a non zero OAM. Therefore the contrast between the star and its faint companion is enhanced. Nevertheless, due the Dove prisms birefringence, the performance of the interferometer is relatively poor. To solve this problem, we propose to add a birefringent wave-plate in each arm to compensate this birefringence. In this paper, we will develop the mathematical model of the wave front using the Jones formalism. The performance of the interferometer is at first computed for the simple version without the birefringent plate. Then the effect of the birefringent plate is be mathematically described and the performance is re-computed.

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Sorting and detecting orbital angular momentum states by using a Dove prism embedded Mach–Zehnder interferometer and amplitude gratings

Cited by 44 publications

References 20 publications

Quantum Sensors: Improved Optical Measurement via Specialized Quantum States

Quantum Sensors: Improved Optical Measurement via Specialized Quantum States

A tilt-compensated Fourier transform spectrometer with an image rotator

A Mach-Zehnder interferometer based on orbital angular momentum for improved vortex coronagraph efficiency

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