Infrared and Laser Engineering, Volume. 51, Issue 10, 20210763(2022)
Suppression of fiber modal noise by using deformable mirror
Figures & Tables(6)
Fig. 1. Schematic diagram of optical fiber modal noise suppression system
Fig. 2. Images under different experimental conditions. (a) Original speckle pattern; (b) Images containing 105 speckle patterns; (c) LED light pattern; (d) Original speckle pattern; (e) Images containing 105 speckle patterns; (f) LED light pattern
Fig. 3. Normalized radial power spectrum under different experimental conditions. (a) Deformable mirror is placed at the exit end; (b) Deformable mirror is placed at the incident end
Fig. 4. Image SNR calculation under different experimental conditions. (a) Deformable mirror is placed at the exit end; (b) Deformable mirror is placed at the incident end
Fig. 5. Stability of centroid after superposition of different numbers of images. (a) Deformable mirror is placed at the exit end; (b) Deformable mirror is placed at the incident end; (c) Deformable mirror doesn’t work
Table 1. Radial velocity calibration errors of major spectrographs
View tableView in ArticleTable 1. Radial velocity calibration errors of major spectrographs
Name Calibration source RV /cm·s−1 Resolution R ESPRESSO[ 13 ]LFC <10 200000 HPF[ 14 ]LFC <6 53000 HARPS-N[ 15 ]LFC <10 115000 HARPS[ 3 ]LFC 2 115000 EXPRES[ 16 ]LFC 2 137500 HRS[ 17 ]LFC 10 50000
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Jiaqi Wang, Liang Xu, Liang Chang. Suppression of fiber modal noise by using deformable mirror[J]. Infrared and Laser Engineering, 2022, 51(10): 20210763
Paper Information
Category: Optical communication and sensing
Received: Jan. 20, 2022
Accepted: --
Published Online: Jan. 6, 2023
The Author Email: Xu Liang (xuliang@ynao.ac.cn)
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