Spectroscopy using a visible photonic lantern at the Subaru Telescope: Laboratory characterization and the first on-sky demonstration on Ikiiki (α Leo) and ‘Aua (α Ori)

Open Access

Fig. 4

Opto-mechanical setup on SCExAO. (Left) Picture of the injection module comprising the injection lens, the PL, and the SMF used for calibration. (Right) Picture of the R 3000 spectrograph. The SMF-fed spectrograph disperses the light thanks to a VPH grating and allows for polarization splitting of the signal thanks to a W.

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