Theoretical analysis on power stability and switch time of the non-mechanical beam steering using liquid crystal optical phased array

Wang, Xiangru; Wu, Liang; He, Xin; Huang, Xinning; Tan, Qinggui

doi:10.1080/02678292.2018.1448474

Cited by 11 publications

(2 citation statements)

References 16 publications

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“…Non-mechanical laser beam steering is desirable in many applications, for instance in free-space laser communications and LIDAR systems for navigation, among many other applications. Some previous research has considered non-mechanical beam steering using liquid crystals 21 , and liquid crystal optical phased arrays 19 , 21 , 22 . New types of liquid crystal devices have been investigated to achieve faster response while using low voltage changes 23 .…”

Section: Introductionmentioning

confidence: 99%

Non-mechanical steering of the optical beam in spectral-domain optical coherence tomography

Urrego,

Machado,

Torres

2024

Sci Rep

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We demonstrate in a proof-of-concept experiment spectral-domain optical coherence tomography where steering of the optical beam that probes the sample in a transverse scan does not make use of any mechanical element. Steering is done with the help of a phase-only spatial light modulator, that introduces a spatially-dependent phase between the two orthogonal polarization components of an optical beam, and some optical elements that control the polarization of light. We demonstrate that making use of the non-mechanical beam steering system considered here, we can reproduce the main traits of imaging with standard OCT that makes use of mechanical-assisted optical beam steering.

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Section: Introductionmentioning

confidence: 99%

Non-mechanical steering of the optical beam in spectral-domain optical coherence tomography

Urrego,

Machado,

Torres

2024

Sci Rep

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show abstract

“…In spite of this, it can help usher in the development of alternative OCT schemes with potentially faster scan speeds than current OCT systems by avoiding the use of any kind of mechanical platforms. Non-mechanical laser beam steering, for applications such as beam steering in free-space laser communications, has been proposed and demonstrated using liquid crystal optical phased arrays 17 . Most commonly used liquid crystal devices share that they show a slow response, due to the slow rotation of the liquid crystal molecule.…”

Section: Introductionmentioning

confidence: 99%

Non-mechanical steering of the optical beam in spectral-domain Optical Coherence Tomography

Urrego,

Machado,

Torres

2023

Preprint

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We demonstrate in a proof-of-concept experiment spectral-domain optical coherence tomography where steering of the optical beam that probes the sample in a transverse scan does not make use of any mechanical element. Steering is done with the help of a spatial light modulator, that introduces a spatially-dependent phase between the two orthogonal polarization components of an optical beam, and some optical elements that control the polarization of light. We demonstrate that making use of the non-mechanical steering system considered here, we can reproduce the main traits of imaging with standard OCT that makes use of mechanical-assisted optical beam steering.

show abstract

Simulation of beam steering control in arrayed liquid prisms system based on electrowetting-on-dielectric

Zhang

Zhao

Kong

et al. 2020

Optoelectron. Lett.

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Theoretical analysis on power stability and switch time of the non-mechanical beam steering using liquid crystal optical phased array

Cited by 11 publications

References 16 publications

Non-mechanical steering of the optical beam in spectral-domain optical coherence tomography

Non-mechanical steering of the optical beam in spectral-domain optical coherence tomography

Non-mechanical steering of the optical beam in spectral-domain Optical Coherence Tomography

Simulation of beam steering control in arrayed liquid prisms system based on electrowetting-on-dielectric

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