High-speed horizontal-path atmospheric turbulence correction with a large-actuator-number microelectromechanical system spatial light modulator in an interferometric phase-conjugation engine

Baker, K. L.; Stappaerts, E. A.; Gavel, Donald T.; Wilks, S. C.; Tucker, J; Silva, D. A.; Olsen, J; Olivier, Scot S.; Young, P. E.; Kartz, Michael W.; Flath, Laurence M.; Kruelevitch, P.; Crawford, J.; Azucena, Oscar

doi:10.1364/ol.29.001781

Cited by 20 publications

(17 citation statements)

References 12 publications

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“…We expect immediate and diverse applications of the present method including focusing and imaging inside biological tissues [25,[35][36][37], near-field control [38,39], nonlinear optics [40], optical fiber communications [41], stable laser resonators [42], and the delivery of high-power laser beams through a turbulent atmosphere [43]. In principle, the technique is also applicable for any form of waves including infrared, ultraviolet, seismic waves, and even x rays.…”

Section: Prl 115 153902 (2015) P H Y S I C a L R E V I E W L E T T Ementioning

confidence: 99%

One-Wave Optical Phase Conjugation Mirror by Actively Coupling Arbitrary Light Fields into a Single-Mode Reflector

Lee

Park

et al. 2015

Phys. Rev. Lett.

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Rewinding the arrow of time via phase conjugation is an intriguing phenomenon made possible by the wave property of light. Here, we demonstrate the realization of a one-wave optical phase conjugation mirror using a spatial light modulator. An adaptable single-mode filter is created, and a phase-conjugate beam is then prepared by reverse propagation through this filter. Our method is simple, alignment free, and fast while allowing high power throughput in the time-reversed wave, which has not been simultaneously demonstrated before. Using our method, we demonstrate high throughput full-field light delivery through highly scattering biological tissue and multimode fibers, even for quantum dot fluorescence.

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Section: Prl 115 153902 (2015) P H Y S I C a L R E V I E W L E T T Ementioning

confidence: 99%

One-Wave Optical Phase Conjugation Mirror by Actively Coupling Arbitrary Light Fields into a Single-Mode Reflector

Lee

Park

et al. 2015

Phys. Rev. Lett.

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“…During the past two decades, several wavefront correction technologies were developed to match this low loss of energy and to provide also adaptive correction for evolving distortions introduced by propagation through turbulent media. Among these, the micro-electro-mechanical systems (MEMS) deformable mirrors (DM) [19] are now compact and robust device for beam shaping at least cost. In our study, we foresee to use two MEMS DMs.…”

Section: -Dm Concept For Laser Beam Shapingmentioning

confidence: 99%

Beam shaping for laser-based adaptive optics in astronomy

Béchet¹,

Guesalaga²,

Neichel³

et al. 2014

Opt. Express

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Abstract:The availability and performance of laser-based adaptive optics (AO) systems are strongly dependent on the power and quality of the laser beam before being projected to the sky. Frequent and time-consuming alignment procedures are usually required in the laser systems with free-space optics to optimize the beam. Despite these procedures, significant distortions of the laser beam have been observed during the first two years of operation of the Gemini South multi-conjugate adaptive optics system (GeMS). A beam shaping concept with two deformable mirrors is investigated in order to provide automated optimization of the laser quality for astronomical AO. This study aims at demonstrating the correction of quasi-static aberrations of the laser, in both amplitude and phase, testing a prototype of this two-deformable mirror concept on GeMS. The paper presents the results of the preparatory study before the experimental phase. An algorithm to control amplitude and phase correction, based on phase retrieval techniques, is presented with a novel unwrapping method. Its performance is assessed via numerical simulations, using aberrations measured at GeMS as reference. The results predict effective amplitude and phase correction of the laser distortions with about 120 actuators per mirror and a separation of 1.4 m between the mirrors. The spot size is estimated to be reduced by up to 15% thanks to the correction. In terms of AO noise level, this has the same benefit as increasing the photon flux by 40%.

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“…6,7,8 This DARPA project in turn had its roots in work performed at the Northrop Gruman Corp. on interferometric tracking systems. 9 The CCIT project developed both the interferometric adaptive optics system at Lawrence Livermore National Laboratory and also the MEMS deformable mirrors at Boston Micromachines Corporation.…”

Section: Previous Work On Interferometric Adaptive Optics Systemsmentioning

confidence: 99%

Interferometric adaptive optics for high-power laser pointing, wavefront control, and phasing

et al. 2009

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Implementing the capability to perform fast ignition experiments, as well as, radiography experiments on the National Ignition Facility (NIF) places stringent requirements on the control of each of the beam's pointing and overall wavefront quality. One quad of the NIF beams, 4 beam pairs, will be utilized for these experiments and hydrodynamic and particle-in-cell simulations indicate that for the fast ignition experiments, these beams will be required to deliver 50%(4.0 kJ) of their total energy(7.96 kJ) within a 40 μm diameter spot at the end of a fast ignition cone target. This requirement implies a stringent pointing and overall phase conjugation error budget on the adaptive optics system used to correct these beam lines. The overall encircled energy requirement is more readily met by phasing of the beams in pairs but still requires high Strehl ratios, S r , and RMS tip/tilt errors of approximately one μrad. To accomplish this task we have designed an interferometric adaptive optics system capable of beam pointing, high Strehl ratio and beam phasing with a single pixilated MEMS deformable mirror and interferometric wave-front sensor. We present the design of a testbed used to evaluate the performance of this wave-front sensor below along with simulations of its expected performance level.

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High-speed horizontal-path atmospheric turbulence correction with a large-actuator-number microelectromechanical system spatial light modulator in an interferometric phase-conjugation engine

Cited by 20 publications

References 12 publications

One-Wave Optical Phase Conjugation Mirror by Actively Coupling Arbitrary Light Fields into a Single-Mode Reflector

One-Wave Optical Phase Conjugation Mirror by Actively Coupling Arbitrary Light Fields into a Single-Mode Reflector

Beam shaping for laser-based adaptive optics in astronomy

Interferometric adaptive optics for high-power laser pointing, wavefront control, and phasing

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