Multi-core fibre–fed integral field spectrograph (MCIFU) – III: an ultrafast laser inscribed photonic reformatter and mask

Pike, Fraser A.; Benoît, Aurélien; MacLachlan, David Guillaume; Ross, Calum A.; Harris, Robert J.; Haffert, Sebastiaan Y.; Gris-Sánchez, Itandehui; Birks, T. A.; Thomson, Robert R.

doi:10.1117/12.2559197

Cited by 2 publications

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“…By combining laser parameters, focusing optics, and sample movement appropriately, the position, shape, and size of each waveguide can be changed. ULI has already been used to write singlemode waveguides, directional couplers and interferometers [29], Bragg-gratings [30], photonic reformatters [31,32], as well as photonic lanterns [19,20]. MSPLs, however, have not yet been fabricated using ULI.…”

Section: Conclusion and Future Outlookmentioning

confidence: 99%

Simulations of mode-selective photonic lanterns for efficient coupling of starlight into the single-mode regime

et al. 2021

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In ground-based astronomy, starlight distorted by the atmosphere couples poorly into single-mode waveguides but a correction by adaptive optics, even if only partial, can boost coupling into the few-mode regime allowing the use of photonic lanterns to convert into multiple single-mode beams. Corrected wavefronts result in focal patterns that couple mostly with the circularly symmetric waveguide modes. A mode-selective photonic lantern is hence proposed to convert the multimode light into a subset of the single-mode waveguides of the standard photonic lantern, thereby reducing the required number of outputs. We ran simulations to show that only two out of the six waveguides of a 1 × 6 photonic lantern carry > 95% of the coupled light to the outputs at D/r 0 < 10 if the wavefront is partially corrected and the photonic lantern is made mode-selective.

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Section: Conclusion and Future Outlookmentioning

confidence: 99%

Simulations of mode-selective photonic lanterns for efficient coupling of starlight into the single-mode regime

et al. 2021

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“…We used an integrated photonic chip to rearrange the two-dimensional geometry of the MCF output into a pseudo-slit that can be dispersed, 24 a detailed description of the reformatter can be found in Ref. 25.…”

Section: Overview Of the Mcifumentioning

confidence: 99%

Multi-core fibre-fed integral-field unit (MCIFU): overview and first-light

Haffert

Harris

Zanutta

et al. 2020

Adaptive Optics Systems VII

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The Multi-Core Integral-Field Unit (MCIFU) is a new diffraction-limited near-infrared integral-field unit for exoplanet atmosphere characterization with extreme adaptive optics (xAO) instruments. It has been developed as an experimental pathfinder for spectroscopic upgrades for SPHERE+/VLT and other xAO systems. The wavelength range covers 1.0 um to 1.6um at a resolving power around 5000 for 73 points on-sky. The MCIFU uses novel astrophotonic components to make this very compact and robust spectrograph. We performed the first Further author information:

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Multi-core fibre–fed integral field spectrograph (MCIFU) – III: an ultrafast laser inscribed photonic reformatter and mask

Cited by 2 publications

References 0 publications

Simulations of mode-selective photonic lanterns for efficient coupling of starlight into the single-mode regime

Simulations of mode-selective photonic lanterns for efficient coupling of starlight into the single-mode regime

Multi-core fibre-fed integral-field unit (MCIFU): overview and first-light

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