Tracking bandwidth limitations for strong optical-turbulence conditions

被引：0

作者：

Kalensky, Matthew ^{[1
]}

Getts, Darren ^{[1
]}

Spencer, Mark F. ^{[2
]}

机构：

[1] Naval Surface Warfare Ctr Dahlgren Div, Integrated Engagement Syst Dept, Dahlgren, VA 22448 USA

[2] Joint Directed Energy Transit Off, Washington, DC USA

来源：

OPTICS LETTERS | 2024年 / 49卷 / 08期

关键词：

We derive a modified fundamental tracking frequency that is applicable for beam-control systems that do not employ adaptive-optics compensation. Specifically; we show that there are diminishing returns on tracking faster than the modified fundamental tracking frequency. Furthermore; when D/r0 > 4; where D is the aperture diameter and r0 is the Fried parameter; we show that increasing the track bandwidth alone will not improve system performance. These conclusions result from beam spreading being the dominant driver of decreased system performance; as opposed to beam jitter. © 2024 Optica Publishing Group (formerly OSA). All rights reserved;

D O I：

10.1364/OL.521092

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We derive a modified fundamental tracking frequency that is applicable for beam-control systems that do not employ adaptive-optics compensation. Specifically, we show that there are diminishing returns on tracking faster than the modified fundamental tracking frequency. Furthermore, when D/r0 > 4, where D is the aperture diameter and r0 is the Fried parameter, we show that increasing the track bandwidth alone will not improve system performance. These conclusions result from beam spreading being the dominant driver of decreased system performance, as opposed to beam jitter.

引用

页码：2081 / 2084

页数：4

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