3D-M3: high-spatial-resolution spectroscopy with extreme AO and 3D-printed micro-lenslets

Anagnos, Theodoros; Trappen, Mareike; Tiong, Blaise C. Kuo; Feger, Tobias; Yerolatsitis, Stephanos; Harris, Robert J.; Lozi, Julien; Jovanović, Nemanja; Birks, T. A.; Vievard, Sébastien; Guyon, Olivier; Gris-Sánchez, Itandehui; Leon-Saval, Sergio G.; Norris, Barnaby; Haffert, Sebastiaan Y.; Hottinger, Phillip; Blaicher, Matthias; Xu, Yilin; Betters, Christopher H.; Koos, Christian; Coutts, David W.; Schwab, Christian; Quirrenbach, A.

doi:10.1364/ao.420855

Cited by 6 publications

(6 citation statements)

References 66 publications

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“…CC BY 4.0.) and 3D-printed microlens arrays on multi-core fibers (Reproduced with permission from [54])), spectral filtering and spectroscopy (using complex waveguide Bragg gratings (Reproduced with permission from [55] © The Optical Society) and arrayed waveguide gratings [56]), spectral calibration (with on-chip laser frequency combs (Reproduced with permission from [57])), interferometry (using Kernel-phase nulling [58]), and detection integration. Reproduced from [59].…”

Section: Realizing Efficient Multi-functional Instrumentsmentioning

confidence: 99%

2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments

Jovanovic,

Gatkine,

Anugu

et al. 2023

J. Phys. Photonics

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Photonic technologies offer numerous functionalities that can be used to realize astrophotonic instruments. The most spectacular example to date is the ESO Gravity instrument at the Very Large Telescope in Chile that combines the light-gathering power of four 8-m telescopes through a complex photonic interferometer. Fully integrated astrophotonic devices offer critical advantages for instrument development, including extreme miniaturization when operating at the diffraction-limit, plus integration, superior thermal and mechanical stabilization owing to the small footprint, and high replicability offering significant cost savings. Numerous astrophotonic technologies have been developed to address shortcomings of conventional instruments to date, including the development of photonic lanterns to convert from multimode inputs to single mode outputs, complex aperiodic fiber Bragg gratings to filter OH emission from the atmosphere, beam combiners enabling long baseline interferometry with for example, ESO Gravity, and laser frequency combs for high precision spectral calibration of spectrometers. Despite these successes, the facility implementation of photonic solutions in astronomical instrumentation is currently limited because of 1) low throughputs from coupling to fibers, coupling fibers to chips, propagation and bend losses, device losses, etc., 2) difficulties with scaling to large channel count devices needed for large bandwidths and high resolutions, and 3) efficient integration of photonics with detectors. In this roadmap, we identify 23 key areas that need further development. We outline the challenges and advances needed across those areas covering design tools, simulation capabilities, fabrication processes, the need for entirely new components, integration and hybridization and the characterization of devices. To realize these advances the astrophotonics community will have to work cooperatively with industrial partners who have more advanced manufacturing capabilities. With the advances described herein, multi-functional integrated instruments will be realized leading to novel observing capabilities for both ground and space based platforms, enabling new scientific studies and discoveries.

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Section: Realizing Efficient Multi-functional Instrumentsmentioning

confidence: 99%

2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments

Jovanovic,

Gatkine,

Anugu

et al. 2023

J. Phys. Photonics

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“…Further slightly deviating from the applications of astrophotonics to interferometry, it is of high interest to report the on-sky demonstration of the concept of MCF-IFU (i.e. Multi-Core Fiber Integral Field Unit) at visible and near-infrared wavelengths by Anagnos et al 17 and Haffert et al 18 , which emerges as a promising extension of the well established principle of fiber fed spectrograph. I will briefly come back to this idea in Sect.…”

Section: A Growing and Active Communitymentioning

confidence: 99%

“…Illustrating flow of a Multicore-Fiber Integral Field Unit (MCF-IFU). This image is a collage using data from Anagnos et al, 17 Harris et al 28 and Haffert et al 18 . From left to right one sees the 3D-printed lenslets requiring Gaussian beam optics treatment, the input of the multicore fiber, the remapping lantern to form the pseudo-slit feeding a spectrograph covering the J and H bands in this case.…”

Section: Remapping Devices and Microlensesmentioning

confidence: 99%

“…At the extreme end of the MCF, the cores were rearranged from a 2D to a 1D linear arrangment using a remapping lantern. This prototype was optimized for the typical astrophotonic H-band 17 , whereas a visible version was assembled for the 4.2-m William Herschel Telescope 18 . While the concept of image plane sampling using fiber bundles or bulk optics lenslet arrays is not new with these works, it is interesting to demonstrate the feasibility of a one-block interface with a filling factor of the image plane of about 100%.…”

Section: Remapping Devices and Microlensesmentioning

confidence: 99%

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A report on the status of astrophotonics for optical/IR interferometry and beyond

Labadie

2022

Optical and Infrared Interferometry and Imaging VIII

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Long-baseline interferometry and high-resolution spectroscopy are two examples of areas that have benefited from astrophotonics devices, but the application range is expanding to other subareas and other wavelength ranges.The VLTI has been one of the pioneering astronomical infrastructure to exploit the potential of astrophotonics instrumentation for high-angular resolution interferometric observations, whereas new opportunities will arise in the context of the future ELTs. In this contribution, I review the current state of the art regarding the interplay between photonic-based solutions and astronomical instrumentation and highlight the growth of the field, as well as its recognition in recent strategy surveys such as the Decadal. I will explain the benefits of different technological platforms making use of photolithography or laser-writing techniques. I will review the most recent results in the field covering simulations, laboratory characterization and on-sky prototyping. Astrophotonics may have a unique role to play in the forthcoming era of new ground-based astronomical facilities, and possibly in the field of space science.

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“…The flexible fabrication of micro-optical components by 3D laser nanoprinting [1] enables a large variety of applications due to its ability to produce transparent polymer structures with optical-grade surface quality. Therefore, a wide range of applications, such as micro-lenses, [2][3][4][5][6][7][8][9] diffractive optical elements, [10][11][12][13][14] and optical gratings [15][16][17] already established in the past. Recently, twophoton grayscale lithography (2GL) [18] has especially improved the capabilities of fabricating micro-optics [19,20] since it enables smoother surfaces by automatically varying the voxel size during the print job.…”

Section: Introductionmentioning

confidence: 99%

On Iterative Pre‐Compensation of 3D Laser‐Printed Micro‐Optical Components Using Confocal‐Optical Microscopy

Weinacker,

Kalt,

Kiefer

et al. 2023

Adv Funct Materials

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State‐of‐the‐art 3D two‐photon laser printing systems already use pre‐compensation algorithms to reduce systematic deviations between the printed and the targeted structures. Nevertheless, the remaining deviations are often still larger than the uncontrollable or “statistical” deviations. In principle, it is straightforward to correct for systematic deviations by measuring the difference between printed structure and target and by subtracting the difference from the first target to obtain the next‐iteration target. However, in reality, one faces several issues such as noise and systematic errors of the characterization measurement itself, as well as unwanted translations and rotations between the coordinate systems of the characterization setup and the printer, respectively. Two examples of printed structures requiring sub‐micrometer accuracy are considered, a large 1D micro‐lens array and a specific diffractive optical element. For both, the device performance before the pre‐compensation workflow described herein is insufficient for the targeted application and has become sufficient after this workflow. The workflow involving optimizations using cross‐correlations with confocal‐optical‐microscopy data is documented by an open‐access program (available via GitLab). This program includes an easy‐to‐use graphical user interface so that other researchers can immediately profit from it.

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3D-M3: high-spatial-resolution spectroscopy with extreme AO and 3D-printed micro-lenslets

Cited by 6 publications

References 66 publications

2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments

2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments

A report on the status of astrophotonics for optical/IR interferometry and beyond

On Iterative Pre‐Compensation of 3D Laser‐Printed Micro‐Optical Components Using Confocal‐Optical Microscopy

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