A television display using acoustic deflection and modulation of coherent light

Korpel, A.; Adler, R.; Desmares, P.; Watson, Walter H.

doi:10.1109/proc.1966.5129

Cited by 103 publications

(18 citation statements)

References 8 publications

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“…The idea of using a laser as light source for display application is proposed in 1960s [1,2]. The main advantage of using a laser in display application is the wide color gamut a display can achieve from the sharp emission spectrum of a laser.…”

Section: Introductionmentioning

confidence: 99%

54‐1: Laser Speckle Reduction using Nanoparticle‐Embedded Liquid Crystals

Chang

Shiraishi

Toshima

et al. 2017

Symp Digest of Tech Papers

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Section: Introductionmentioning

confidence: 99%

54‐1: Laser Speckle Reduction using Nanoparticle‐Embedded Liquid Crystals

Chang

Shiraishi

Toshima

et al. 2017

Symp Digest of Tech Papers

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“…As a special case, this enables multiple optical wavelengths to be sent to and received from a single angular spot. Such functionality may prove useful in the realization of free-space communication links [11,38], (holographic) video displays [14,39], remote sensing [40][41][42], and coherent imaging [43,44].…”

Section: Discussionmentioning

confidence: 99%

“…Sound is a naturally tunable optical grating. An acoustic wave containing multiple wavelengths scatters light into multiple angles as realized in pioneering work on acousto-optic beam deflectors [12][13][14]. A progression to guided-wave, collinear systems [15,16] and arrays [17] in Ti-diffused and proton-exchanged lithium niobate waveguides enabled large fields of view for monochromatic light.…”

mentioning

confidence: 99%

Optomechanical antennas for on-chip beam-steering

Sarabalis

Laer

2018

Opt. Express

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Rapid and low-power control over the direction of a radiating light field is a major challenge in photonics and a key enabling technology for emerging sensors and free-space communication links. Current approaches based on bulky motorized components are limited by their high cost and power consumption, while on-chip optical phased arrays face challenges in scaling and programmability. Here, we propose a solid-state approach to beam-steering using optomechanical antennas. We combine recent progress in simultaneous control of optical and mechanical waves with remarkable advances in on-chip optical phased arrays to enable low-power and full two-dimensional beam-steering of monochromatic light. We present a design of a silicon photonic system made of photonic-phononic waveguides that achieves 44° field of view with 880 resolvable spots by sweeping the mechanical wavelength with about a milliwatt of mechanical power. Using mechanical waves as nonreciprocal, active gratings allows us to quickly reconfigure the beam direction, beam shape, and the number of beams. It also enables us to distinguish between light that we send and receive.

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“…Another approach to increase the bandwidth, which can be implemented in isotropic and anisotropic AO crystals, involves an array of transducers [12,13]. The RF signal is applied to each transducer with a different relative phase in order to steer the acoustic wavefront, tracking the appropriate Bragg angle.…”

Section: Introductionmentioning

confidence: 99%

Acousto-optics bandwidth broadening in a Bragg cell based on arbitrary synthesized signal methods

2015

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In this work, we present the advantages of driving a multichannel acousto-optical deflector (AOD) with a digitally synthesized multifrequency RF signal. We demonstrate a significant bandwidth broadening of ∼40% by providing well-tuned phase control of the array transducers. Moreover, using a multifrequency, complex signal, we manage to suppress the harmonic deflections and return most of the spurious energy to the main beam. This method allows us to operate the AOD with more than an octave of bandwidth with negligible spurious energy going to the harmonic beams and a total bandwidth broadening of over 70%.

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A television display using acoustic deflection and modulation of coherent light

Cited by 103 publications

References 8 publications

54‐1: Laser Speckle Reduction using Nanoparticle‐Embedded Liquid Crystals

54‐1: Laser Speckle Reduction using Nanoparticle‐Embedded Liquid Crystals

Optomechanical antennas for on-chip beam-steering

Acousto-optics bandwidth broadening in a Bragg cell based on arbitrary synthesized signal methods

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