An ultra-compact optical spectrograph utilizing waveguide spectral lenses

Jian Ge; Ziyang Zhang; Chaoyan Wang; Shijie Ke; Zhenming Ding; Pengjun Zhang; Xinhong Jiang; Dan Zhou; Jiapeng Zhu; Lingxiao Li; Changhui Rao; Congcong Zhang; Jianqing Cai; Yixin Zhang

doi:10.1117/12.3019608

6 August 2024 An ultra-compact optical spectrograph utilizing waveguide spectral lenses

Jian Ge, Ziyang Zhang, Chaoyan Wang, Shijie Ke, Zhenming Ding, Pengjun Zhang, Xinhong Jiang, Dan Zhou, Jiapeng Zhu, Lingxiao Li, Changhui Rao, Congcong Zhang, Jianqing Cai, Yixin Zhang

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130961K (2024) https://doi.org/10.1117/12.3019608
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

An ultra-compact optical spectrograph (~43x16x13cm) is developed using a new optical arrayed waveguide technique based on waveguide spectral lenses (WSL). The WSL is an evolved version from the arrayed waveguide grating design can achieve simultaneous spectral dispersion and image focusing onto the detector plane at designed distance. Despite its compact size, the instrument maintains high optical throughput and provides a wide range of spectral resolution (R~200-2000 at 600-950 nm). The spectrograph's design and the results of laboratory testing will be reported.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jian Ge, Ziyang Zhang, Chaoyan Wang, Shijie Ke, Zhenming Ding, Pengjun Zhang, Xinhong Jiang, Dan Zhou, Jiapeng Zhu, Lingxiao Li, Changhui Rao, Congcong Zhang, Jianqing Cai, and Yixin Zhang "An ultra-compact optical spectrograph utilizing waveguide spectral lenses", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130961K (6 August 2024); https://doi.org/10.1117/12.3019608

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