PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
Despite recent advances in high-contrast imaging techniques, high resolution spectroscopy for characterization of exoplanet atmospheres is still limited by our ability to suppress residual starlight speckles at the planet’s location. We have demonstrated a new concept for speckle nulling by injecting directly imaged planet light into a single-mode fiber, linking a high-contrast adaptively-corrected coronagraph to a high-resolution spectrograph (diffraction-limited or not). The restrictions on the incident electric field that will couple into the single-mode fiber give the adaptive optics system additional degrees of freedom to suppress the speckle noise on top of destructive interference. We are able to achieve a starlight suppression gains that are an order of magnitude better than conventional techniques in broadband light with minimal planet throughput losses.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
N. Klimovich, Y. Xin, D. Mawet, G. Ruane, J.-R. Delorme, W. Xuan, D. Echeverri, M. Randolph, J. Fucik, J. K. Wallace, J. Wang, G. Vasisht, R. Dekany, B. Mennesson, E. Choquet, E. Serabyn, "Utilizing active single-mode fiber injection for speckle nulling in exoplanet characterization," Proc. SPIE 10400, Techniques and Instrumentation for Detection of Exoplanets VIII, 104000Y (1 September 2017); https://doi.org/10.1117/12.2275173