Calibration of non-Common path aberration using multi-Channel phase diversity technique
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DOI: 10.1016/j.ijleo.2016.10.059
Abstract: Abstract This paper provides a method of using multi-channel Phase Diversity technique for online calibration of non-common path aberration of AO system. The PD technique estimate the phase aberration by collecting one or more frames… read more here.
Keywords: phase diversity; non common; path; aberration ... See more keywords
Real-time wavefront reconstruction for extended object based on phase diversity
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DOI: 10.1016/j.ijleo.2017.06.064
Abstract: Abstract We present a real-time solution to the phase diversity problem when the observed objects are extended scenes. It utilizes an iterative linearization of the optical transfer functions (OTF) in at least two diversity planes… read more here.
Keywords: time wavefront; phase diversity; real time; diversity ... See more keywords
Single-shot phase diversity wavefront sensing in deep turbulence via metasurface optics
Sign Up to like & getrecommendations! Published in 2024 at "Nature Photonics"
DOI: 10.1038/s41566-025-01772-4
Abstract: Free-space optical communication systems offer high-bandwidth, secure communication with minimal capital costs. Adaptive optics are typically added to these systems to decrease atmospheric channel losses; however, the performance of traditional adaptive optics wavefront sensors degrades… read more here.
Keywords: phase diversity; optics; wavefront sensing; turbulence ... See more keywords
Experimental validation of joint phase and amplitude wave-front sensing with coronagraphic phase diversity for high-contrast imaging
Sign Up to like & getrecommendations! Published in 2018 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201732439
Abstract: Context. The next generation of space-borne instruments dedicated to the direct detection of exoplanets requires unprecedented levels of wavefront control precision. Coronagraphic wavefront sensing techniques for these instruments must measure both the phase and amplitude… read more here.
Keywords: coronagraphic phase; phase; phase diversity; phase amplitude ... See more keywords
Coronagraphic phase diversity through residual turbulence: performance study and experimental validation
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz1986
Abstract: Quasi-static aberrations in coronagraphic systems are the ultimate limitation to the capabilities of exoplanet imagers both ground-based and space-based. These aberrations – which can be due to various causes such as optics alignment or moving… read more here.
Keywords: optics; coronagraphic phase; phase diversity; residual turbulence ... See more keywords
Seamless Digital Wireless-Photonic Receiver With Optical Phase Diversity
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2024.3403231
Abstract: This paper forms the basis for wireless constellation detection in seamless digital wireless-photonic receivers. The two intermediary stages in the proposed receiver model are discussed: Wireless-to-Optical (W-O) and Optical-to-Electrical (O-E) symbol mapping stages. The inherent… read more here.
Keywords: phase diversity; seamless digital; wireless; wireless photonic ... See more keywords
Phase Unwrapping Algorithm for Distributed Acoustic Sensing Based on Unlimited Sampling and Phase Diversity
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DOI: 10.1109/jsen.2025.3555511
Abstract: Distributed acoustic sensing (DAS) detects strain on optical fibers over long distances with a typical spatial resolution of a couple of meters and an acquisition rate of up to 100 kHz. DAS is utilized to… read more here.
Keywords: unlimited sampling; phase diversity; based unlimited; acoustic sensing ... See more keywords
Parallel blind deconvolution reconstruction using phase diversity for three-dimensional imaging
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DOI: 10.1117/1.oe.56.4.043104
Abstract: Abstract. Phase diversity (PD) is the special case of multiframe blind deconvolution algorithm, where an object is observed with a stack intentionally defocused image. The known defocused information between phases is used to estimate the… read more here.
Keywords: three dimensional; phase diversity; blind deconvolution; deconvolution ... See more keywords
Phase diversity method based on an improved particle swarm algorithm used in co-phasing error detection.
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DOI: 10.1364/ao.404707
Abstract: The phase diversity (PD) algorithm is an image-based co-phasing error detection method for segmented mirror synthetic aperture optical systems. Particle swarm optimization (PSO) is suitable for PD for its fast convergence speed and simple structure.… read more here.
Keywords: algorithm; error; phase diversity; particle swarm ... See more keywords
Experimental study on high-precision phase diversity wavefront sensing using a distorted grating.
Sign Up to like & getrecommendations! Published in 2025 at "Applied optics"
DOI: 10.1364/ao.550365
Abstract: Phase diversity using a distorted grating is recognized as an effective wavefront sensing technique. The distorted grating is capable of simultaneously generating multiple images with specific diversity phases, offering advantages such as high efficiency of… read more here.
Keywords: phase diversity; distorted grating; wavefront sensing; diversity ... See more keywords
Maintenance of broadband detection in photonic time-stretched coherent radar employing phase diversity.
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DOI: 10.1364/oe.27.032892
Abstract: Frequency response fluctuation in a radar system distorts the envelope of the output signal after matched filtering, thereby impairing its broadband detection performance. Simulations are made under various types and degrees of fluctuation. The results… read more here.
Keywords: broadband detection; detection; phase diversity; radar ... See more keywords