Point spread function reconstruction simulations for laser guide star multi-conjugate adaptive optics on extremely large telescopes

被引：6
|
作者：
Gilles, L. [1 ]
Wang, L. [1 ]
Boyer, C. [1 ]
机构：
[1] Thirty Meter Telescope Int Observ LLC, 100 W Walnut St, Pasadena, CA 91124 USA
来源：
ADAPTIVE OPTICS SYSTEMS VI | 2018年 / 10703卷
基金：
美国国家科学基金会; 加拿大创新基金会; 加拿大自然科学与工程研究理事会;
关键词：
Laser guide star multi-conjugate adaptive optics (LGS MCAO); point spread function reconstruction (PSFR);
D O I：
10.1117/12.2315793
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper discusses point spread function reconstruction (PSFR) simulations for laser guide star (LGS) multi-conjugate adaptive optics (MCAO) on extremely large telescopes (ELTs). The Multithreaded Adaptive Optics Simulator (MAOS), configured to simulate the Thirty Meter Telescope (TMT) Narrow Field InfraRed Adaptive Optics System (NFIRAOS), provided simulated telemetry. For median Mauna Kea turbulence conditions (0.55arcsec seeing) and for the expected NFRIAOS laser guide star (LGS) wavefront sensor (WFS) measurement noise, the actuator error based PSFR algorithm leads to Strehl Ratio (SR), enclosed energy (EE) and PSF profile errors below 8% in Z-band, 5% in J-band and 2% in K-band assuming perfect knowledge of the turbulence and wind profiles and of measurement noise. Further algorithm optimization could in principle reduce this residual error level.
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页数：5
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