[9p-C212-1~18] CS.3 Code-sharing session of 3.5 &3.7

5:45 PM - 6:00 PM JST(8:45 AM - 9:00 AM UTC)

[9p-C212-16] Broadband Spectral Flattening of an Astro-comb for Precision Enhancement

〇(M1)Ryunosuke Shimazkai^1,2, Sho Ookubo², Yohiaki Nakajima¹, Hajime Inaba² (1.Toho Univ, 2.AIST; NMIJ)

Keywords:

optical frequency comb,astrocomb,Spatial Light Modulator

Optical frequency combs are expected to serve as highly accurate wavelength calibration sources for exoplanet detection using the Doppler method. However, large variations in the intensity distribution of the calibration spectrum can degrade calibration accuracy. In this study, broadband spectral flattening was performed to improve the performance of an astro-comb, and the spectral characteristics before and after flattening are reported.