Upgrade plans for Subaru AO system

被引：10

作者：

Hayano, Y ^{[1
]}

Takami, H ^{[1
]}

Gaessler, W ^{[1
]}

Takato, N ^{[1
]}

Goto, M ^{[1
]}

Kamata, Y ^{[1
]}

Minowa, Y ^{[1
]}

Kobayashi, N ^{[1
]}

Iye, M ^{[1
]}

机构：

[1] Natl Astron Observ, Mitaka, Tokyo 1818588, Japan

来源：

ADAPTIVE OPTICAL SYSTEM TECHNOLOGIES II, PTS 1 AND 2 | 2003年 / 4839卷

关键词：

adaptive optics; Subaru telescope; laser guide star; Mauna Kea;

D O I：

10.1117/12.459679

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A 36-elements curvature adaptive optics (AO) system has been operating on the Subaru telescope for about one and a half year. We achieved a Strehl ratio of 0.3 in the K-band, which is a rather smaller value than we expected. While we are investigating the discrepancy between the obtained performance and the simulated performance of the current AO system and we are also improving the current AO system in terms of the Strehl performance and the observing efficiency. Meanwhile we have started to plan a next generation of Subaru AO system. Two major upgrades are proposed in this paper. One is to increase the number of subapertures as much as possible. Practically, the number of subapertures lies between 100 and 200. The size of subaperture becomes half to one-third of that of the current system and we expect that the K-band Strehl ratio will improve to more than 0.6. The first light of the higher order curvature AO system is scheduled for 2004. Another upgrade plan is to use a laser guide star (LGS). A single LGS is projected at the sodium layer with an output power of 4 W. Conceptual designs for the laser system, beam relay system, laser launching telescope and control system have begun. The first test of launching laser from Subaru telescope will be in 2005.

引用

页码：32 / 43

页数：12

共 16 条

[1]

Bonaccini D., 2002, Proceedings of the SPIE - The International Society for Optical Engineering, V4494, P276, DOI 10.1117/12.454802

[2]

d'Orgeville C., 2002, Proceedings of the SPIE - The International Society for Optical Engineering, V4494, P302, DOI 10.1117/12.454804

[3] LGS AO photon return simulations and laser requirements for the Gemini LGS AO program [J].

d'Orgeville, C ;

Rigaut, F ;

Ellerbroek, BL .

ADAPTIVE OPTICAL SYSTEMS TECHNOLOGY, PTS 1 AND 2, 2000, 4007 :131-141

[4] Design and performance of a laser guide star system for the Keck II telescope [J].

Friedman, HW ;

Cooke, JB ;

Danforth, PM ;

Erbert, GV ;

Feldman, M ;

Gavel, DT ;

Jenkins, SL ;

Jones, HE ;

Kanz, VK ;

Kuklo, T ;

Newman, MJ ;

Pierce, EL ;

Presta, RW ;

Salmon, JT ;

Thompson, GR ;

Wong, NJ .

ADAPTIVE OPTICAL SYSTEM TECHNOLOGIES, PARTS 1 AND 2, 1998, 3353 :260-276

[5] First light for Hokupa'a 36 on Gemini North [J].

Graves, JE ;

Northcott, M ;

Roddier, F ;

Roddier, C ;

Potter, D ;

O'Connor, D .

ADAPTIVE OPTICAL SYSTEMS TECHNOLOGY, PTS 1 AND 2, 2000, 4007 :26-30

[6]

HACKENBERG WK, 2002, P SOC PHOTO-OPT INS, V4007, P258

[7] Preliminary experiments of prototype laser guide star system for Subaru telescope [J].

Hayano, Y ;

Takami, H ;

Takato, N ;

Kanzawa, T ;

Kamata, Y ;

Nakashima, K ;

Iye, M ;

Oya, S .

ADAPTIVE OPTICAL SYSTEMS TECHNOLOGY, PTS 1 AND 2, 2000, 4007 :149-154

[8] IRCS: Infrared camera and spectrograph for the Subaru Telescope [J].

Kobayashi, N ;

Tokunaga, A ;

Terada, H ;

Goto, M ;

Weber, M ;

Potter, R ;

Onaka, P ;

Ching, G ;

Young, T ;

Fletcher, K ;

Neil, D ;

Robertson, L ;

Cook, D ;

Imanishi, M ;

Warren, D .

OPTICAL AND IR TELESCOPE INSTRUMENTATION AND DETECTORS, PTS 1 AND 2, 2000, 4008 :1056-1066

[9]

Rabien S., 2002, Proceedings of the SPIE - The International Society for Optical Engineering, V4494, P325, DOI 10.1117/12.454807

[10] Comparison of curvature-based and Shack-Hartmann-based adaptive optics for the Gemini telescope [J].

Rigaut, F ;

Ellerbroek, BL ;

Northcott, MJ .

APPLIED OPTICS, 1997, 36 (13) :2856-2868

← 1 2 →