Optimizing photonic ring-resonator filters for OH-suppressed near-infrared astronomy

Liu Pufan; Czaplewski David A.; Ellis Simon; Kehoe Robert; Kuehn Kyler; Spinka Harold M.; Stern Nathaniel P.; Underwood David G.; Kuhlmann Steve

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Optimizing photonic ring-resonator filters for OH-suppressed near-infrared astronomy

机译：优化光子环形谐振器过滤器，用于OH-抑制近红外天文学

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Near-infrared wavelength observations are crucial for understanding numerous fields of astrophysics, such as supernova cosmology and positronium annihilation detection. However, current ground-based observations suffer from an enormous background due to OH emission in the upper atmosphere. One promising way to solve this problem is to use ring-resonator filters to suppress OH emission lines. In this work, we discuss our optimization of ring-resonator filter performance from five perspectives: resonance wavelength matching, polarization-independent operation, low insertion loss, low-loss coupling to astronomical instruments, and broadband operation. In the end, we discuss next steps needed for reliable supernova and positronium observations, thus providing a roadmap for future advances in near-infrared astronomy. (C) 2021 Optical Society of America

机译：近红外波长观测对于理解许多天体物理学领域至关重要，例如超新星宇宙学和正电子湮没探测。然而，由于高层大气中的OH排放，目前的地面观测受到巨大的背景影响。解决这个问题的一个有希望的方法是使用环形谐振器滤波器来抑制OH发射线。在这项工作中，我们从五个角度讨论了环形谐振器滤波器性能的优化：共振波长匹配、偏振无关操作、低插入损耗、与天文仪器的低损耗耦合以及宽带操作。最后，我们讨论了可靠的超新星和正电子素观测所需的下一步，从而为近红外天文学的未来发展提供了路线图。（2021）美国光学学会

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《Applied optics》 |2021年第13期|共9页
作者
Liu Pufan; Czaplewski David A.; Ellis Simon; Kehoe Robert; Kuehn Kyler; Spinka Harold M.; Stern Nathaniel P.; Underwood David G.; Kuhlmann Steve;
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Northwestern Univ Dept Mat Sci &

Engn 633 Clark St Evanston IL 60208 USA;

Argonne Natl Lab 9700 S Cass Ave Argonne IL 60439 USA;

Macquarie Univ Australian Astron Opt 105 Delhi Rd N Ryde NSW 2113 Australia;

Southern Methodist Univ 3215 Daniel Ave Dallas TX 75205 USA;

Macquarie Univ Australian Astron Opt 105 Delhi Rd N Ryde NSW 2113 Australia;

Argonne Natl Lab 9700 S Cass Ave Argonne IL 60439 USA;

Northwestern Univ Dept Phys &

Astron 633 Clark St Evanston IL 60208 USA;

Argonne Natl Lab 9700 S Cass Ave Argonne IL 60439 USA;

Argonne Natl Lab 9700 S Cass Ave Argonne IL 60439 USA;

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Optimizing photonic ring-resonator filters for OH-suppressed near-infrared astronomy

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