State-of-the-Art Optical Systems for Astronomy

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optical Interaction Science".

Deadline for manuscript submissions: 20 July 2026 | Viewed by 1546

Special Issue Editor


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Guest Editor
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, China
Interests: wavefront sensing and control; multi‑parameter high‑precision opto‑mechanical reference calibration; the establishment of internal wavefront reference frames; multi‑scale hierarchical control of wavefront quality
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Special Issue Information

Dear Colleagues,

This Special Issue, titled “State-of-the-Art Optical Systems for Astronomy”, focuses on cutting-edge advances in the design, control, and integration of high-performance optical systems for ground- and space-based telescopes. Key research areas include low-sensitivity optical design, high-precision optical manufacturing, wavefront sensing and control, astronomical photonic devices, advanced detectors, thermal management, adaptive optics, and laser guide star technologies. This Special Issue will promote interdisciplinary innovation and advances in astronomy through breakthroughs in precision optical technology.

Dr. Qichang An
Guest Editor

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Keywords

  • astronomical optical systems
  • wavefront sensing and control
  • adaptive optics
  • low-sensitivity optical design
  • high-precision optical manufacturing
  • astronomical photonics
  • thermal management and system stability
  • laser guide star technology

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Published Papers (1 paper)

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Review

50 pages, 5839 KB  
Review
Wavefront Coherence Stabilization for Large Segmented Telescope: Measurement and Control
by Wuyang Wang, Qichang An and Xiaoxia Wu
Photonics 2026, 13(4), 360; https://doi.org/10.3390/photonics13040360 - 9 Apr 2026
Viewed by 1290
Abstract
Large-aperture optical synthetic aperture technology, by combining multiple aperture units, breaks through the limitations of a single reflector and has become the preferred system for extending the resolution and diffraction limit of imaging systems. In particular, segmented telescopes have accumulated extensive engineering practice [...] Read more.
Large-aperture optical synthetic aperture technology, by combining multiple aperture units, breaks through the limitations of a single reflector and has become the preferred system for extending the resolution and diffraction limit of imaging systems. In particular, segmented telescopes have accumulated extensive engineering practice experience, such as the 30 m TMT and the 39 m ELT. However, the stable maintenance of wavefront coherence between multiple sub-apertures requires strict phase synchronization and group delay matching accuracy, which hinders the further development of sparse aperture telescopes and distributed interferometric telescopes (Long-Baseline Interferometers). This review systematically summarizes the research progress on synthetic aperture systems in wavefront coherence detection and stable maintenance control, focusing on two main physical architectures (Michelson and Fizeau types) and the related control algorithms. Furthermore, based on the basic logic from “measurement” to “modulation”, it prospects the development trends driven by interdisciplinary technologies such as embodied intelligent dynamic prediction, photonic integration, and real-time sensing based on deep learning. The aim is to provide a reference for wavefront-stabilization solutions in the next-generation ultra-large-aperture optical synthetic aperture systems. Full article
(This article belongs to the Special Issue State-of-the-Art Optical Systems for Astronomy)
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