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1. Optimizing fibre connectors for high throughput and low FRD for next generation multi-fibre astronomical instruments NSTL国家科技图书文献中心

Zinat M. Sathi |  Adeline Wang... -  《Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI, Part Two of Three Parts: At SPIE Astronomical Telescopes + Instrumentation.16-22 June 2024.Yokohama, Japan》 -  Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation (conference) - 2024, - 131002F.1～131002F.8 - 共8页

摘要： minimal Focal Ratio Degradation (FRD) has become |  productivity could be enhanced if focal plane fibres and |  needed. From that analysis, the main causes of FRD and |  being prototyped to improve the fibre alignment, FRD |  terms of fibre throughput and FRD in both the optical
关键词： Optical fibre connector |  throughput |  Focal Ratio Degradation (FRD) |  near-infrared
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2. Characterization of Multi-Clad Fibers: Approaches to Measure the Beam Divergence Angle and its Degradation in the Fiber NSTL国家科技图书文献中心

Doerte Schoenfeld |  Daniel Reul... -  《High-Power Laser Materials Processing: Applications, Diagnostics, and Systems XIII: At SPIE LASE.31 January - 1 February 2024.San Francisco, California, United States》 -  High-Power Laser Materials Processing: Applications, Diagnostics, and Systems (conference) - 2024, - 1287805.1～1287805.18 - 共18页

摘要： focal ratio degradation (FRD).In this work, we compare |  conditions to quantify FRD of MC fibers. One approach is |  results for FRD of MC fibers with both methods and | Multi-cladding (MC) fibers with undoped silica |  core and alternating highly fluorine doped and
关键词： Multi-clad fiber |  focal ratio degradation (FRD) |  high power laser transmission |  step index fiber |  multimode fiber |  large core fiber |  fiber metrology |  beam divergence
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3. Light scrambling and focal ratio degradation of thin multimode fibers with different core geometries NSTL国家科技图书文献中心

Man-Yin Leo Lee |  Zhiheng Lin... -  《Ground-based and Airborne Instrumentation for Astronomy X, Part Three of Four Parts: At SPIE Astronomical Telescopes + Instrumentation.16-21 June 2024.Yokohama, Japan》 -  Ground-based and Airborne Instrumentation for Astronomy (conference) - 2024, - 1309668.1～1309668.13 - 共13页

摘要： function (LSF) of the spectra. Focal ratio degradation |  (FRD) influences the output beam size, thereby | -field scrambling properties, along with the FRD, of 50 |  fibers. They also have less FRD effect when being fed | The performance of fiber-fed astronomical
关键词： Focal ratio degradation |  Non-circular fibers |  Fiber scrambling |  Fiber-fed Spectrograph |  Optical Fibers |  AMASE
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4. Prime Focus Spectrograph (PFS) for Subaru Telescope: performance verification of the science-grade fiber optics cable NSTL国家科技图书文献中心

Shintaro Koshida |  Yuki Moritani... -  《Ground-based and Airborne Instrumentation for Astronomy X, Part Two of Four Parts: At SPIE Astronomical Telescopes + Instrumentation.16-21 June 2024.Yokohama, Japan》 -  Ground-based and Airborne Instrumentation for Astronomy (conference) - 2024, - 130962O.1～130962O.11 - 共11页

摘要：, throughput, and focal ratio degradation (FRD). For |  focal plane over a field of view of 1.3 degrees in |  measured FRD employing the collimated beam method to |  physical stress after the installation. Our FRD |  few months showed FRD remained sufficiently stable
关键词： Prime Focus Spectrograph |  multi-object |  wide field |  fiber optics |  performance verification |  Focal ratio degradation
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5. Exo-NINJA at Subaru: fiber-fed spectro-imaging of exoplanets and circumstellar disks at R ~ 4000 NSTL国家科技图书文献中心

M. El Morsy |  J. Lozi... -  《Ground-based and Airborne Instrumentation for Astronomy X, Part Three of Four Parts: At SPIE Astronomical Telescopes + Instrumentation.16-21 June 2024.Yokohama, Japan》 -  Ground-based and Airborne Instrumentation for Astronomy (conference) - 2024, - 130966S.1～130966S.13 - 共13页

摘要： focal ratio degradation (FRD) performance of optical | Exo-NINJA will realize nearlR R≈4000 |  diffraction-limited narrow-field spectro-imaging for |  characterization of exoplanets and circumstellar disk structures | . It uniquely combines mid-R spectroscopy, high
关键词： instrumentation: medium spectral resolution |  instrumentation: spectrographs |  instrumentation: optical fibers |  instrumentation: adaptive optics
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6. Focal ratio degradation in optical fibres for the Hector integral field units EI 工程索引 NSTL国家科技图书文献中心

Wang Adeline Haobing |  Brown Rebecca... -  《Monthly notices of the Royal Astronomical Society》 - 2023,522(3) - 4310～4322 - 共13页 - 被引量：3

摘要：ABSTRACT Focal Ratio Degradation (FRD) in |  instrumentation, FRD must be controlled because light levels are |  introduce a cone-beam measurement method to measure FRD at |  optical wavelengths. We present the FRD and throughput |  significant FRD beyond that of the bare fibre.
关键词： instrumentation: detectors |  techniques: imaging spectroscopy |  techniques: miscellaneous
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7. MOONS - multi object spectroscopy for the VLT: final performances and integration of the fibres NSTL国家科技图书文献中心

Isabelle Guinouard |  Philippe Laporte... -  《Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, Part Two of Two Parts: At SPIE Astronomical Telescopes + Instrumentation.17-22 July 2022.Montreal, Quebec, Canada》 -  Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation (conference) - 2022, - 121885S-1～121885S-12 - 共12页

摘要： fast focal ratio of F/3.65 to reduce the Focal Ratio |  Degradation (FRD). The light is then fed through the fibres |  single focal plate and fibre positioning subsystem |  position in the telescope focal plane. Each fibre has a | MOONS (Multi-Object Optical and near-Infrared
关键词： Spectrographs |  Astronomical imaging |  Cameras |  Microlens |  Telescopes |  Integrating spheres |  Optical fabrication
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8. VIRUS2: IFU and mechanical interfaces to the 2.7 m Harlan J. Smith Telescope NSTL国家科技图书文献中心

John M. Good |  Gary J. Hill... -  《Ground-based and Airborne Instrumentation for Astronomy IX, Part Three of Three Parts: At SPIE Astronomical Telescopes + Instrumentation.17-22 July 2022.Montreal, Quebec, Canada》 -  Ground-based and Airborne Instrumentation for Astronomy (conference) - 2022, - 121847C-1～121847C-13 - 共13页

摘要： bundle. This approach prevents Focal Ratio Degradation |  addresses those elements which connect VIRUS2 to the focal | -Cassegrain focal surface, to a fully-constrained location |  (FRD) due to rotation-induced stresses at the Input |  IFU at the focal surface. The IFU input, acquisition
关键词： Telescopes |  Observatories |  Cameras |  Spectrographs |  Calibration |  Interfaces |  Optical instrument design
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9. Performance testing and end-to-end mapping of the fiber cable on the SALT NIR integral field spectrograph NSTL国家科技图书文献中心

Joshua Oppor |  Matthew A. Bershady... -  《Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, Part Two of Two Parts: At SPIE Astronomical Telescopes + Instrumentation.17-22 July 2022.Montreal, Quebec, Canada》 -  Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation (conference) - 2022, - 121885P-1～121885P-17 - 共17页

摘要： focal ratio degradation (FRD) when holding |  dependent FRD is negligible for our designed length of |  FRD from the rubber seal that breaches the room | The optical fiber integral field unit (IFU | ) built to feed the near infrared (NIR) spectrograph for
关键词： Polishing |  Spectrographs |  Surface finishing |  Epoxies |  Telescopes |  Near infrared |  Prototyping
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10. Focal-ratio degradation (FRD) mitigation in a multimode fibre link using mode-selective photonic lanterns SCOPUS Scopus数据库 SCIE Web of Science核心 NSTL国家科技图书文献中心

Benoit, Aurelien |  Yerolatsitis, Stepha...... -  《Monthly notices of the Royal Astronomical Society》 - 2021,502(2) - 2381～2388 - 共8页 - 被引量：3

摘要：We present a new way to mitigate focal-ratio |  degradation (FRD) when using optical fibres to transport |  link exhibits superior FRD behaviour compared to a |  FRD in multimode fibre links, with particular |  multimode light. Our approach exploits a custom multicore
关键词： instrumentation: miscellaneous |  instrumentation: spectrograph |  methods: data analysis |  techniques: miscellaneous |  techniques: spectroscopic |  OPTICAL FIBERS
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