Multiple-beam interference in a spiral phase plate

Rumala, Yisa S.; Leanhardt, Aaron

doi:10.1364/josab.30.000615

Cited by 37 publications

(25 citation statements)

References 48 publications

(55 reference statements)

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“…Spiralphased plates have also been fabricated to generate a coherent superposition of optical vortices with different winding numbers and surface reflection coefficients [25,26]. In addition, q-plates have been fabricated from liquid-crystal slabs to convert a left circularly polarized beam into a helically phased beam with right circular polarization, or vice versa [27].…”

Section: Related Workmentioning

confidence: 99%

Laguerre-Gaussian mode division multiplexing in multimode fiber using SLMs in VCSEL arrays

Amphawan

Fazea

2016

J. Eur. Opt. Soc.-Rapid Publ.

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Mode division multiplexing (MDM) is a promising technology for increasing the aggregate bandwidth of multimode fiber (MMF) in conjunction with wavelength division multiplexing (WDM) in face of the impending capacity crunch in optical fiber networks. This paper investigates the effect of radial and azimuthal mode spacings in a 25-channel MDM-WDM system in MMF using a spatial light modulator-controlled VCSEL array for excitation of Laguerre-Gaussian (LG) modes. A data rate of 25Gbps is achieved at a central wavelength of 1550.12 nm. The effects of different azimuthal and radial mode spacings of LG modes are analyzed in terms of the channel impulse response, eye diagram and bit-error rate.

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Section: Related Workmentioning

confidence: 99%

Laguerre-Gaussian mode division multiplexing in multimode fiber using SLMs in VCSEL arrays

Amphawan

Fazea

2016

J. Eur. Opt. Soc.-Rapid Publ.

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“…The relationship between the length of the cavity and the transmission peaks is predicted by the multi-beams interferometry [18,19] 2nd k λ =…”

Section: Sensor Principlementioning

confidence: 99%

A Method for the Measurement of Methane Gas Based on Multi-beam Interferometry

Ye¹,

Li²

2013

Journal of the Optical Society of Korea

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A method for the measurement of the concentration of methane is experimentally demonstrated. The wavelength filter and gas cell are combined by using one Fabry-Perot etalon, which is filmed with the reflectivity of 96%. The optical broadband source is not only filtered to match the absorption wavelength of methane, but also absorbed by the methane in the same Fabry-Perot etalon. The concentration of the methane can be detected directly by measuring the transmission intensity. Compared with the conventional method, the proposed method possesses low costand high stability.

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“…Spiral phase plates are widely employed as mode selectors, in active cavities [2], as etalons [3], and in free space [4,5]; in the rotation of microparticles [6] and nanomechanical elements [7,8], in microscopy [9], in astronomy [10], and in tests of quantum mechanics [11].…”

Section: Introductionmentioning

confidence: 99%