Fiber pupil-slicer: a versatile light feed for spectrographs

Masanori Iye; Noboru Ebizuka; Hideki Takami

doi:10.1117/12.316770

9 July 1998 Fiber pupil-slicer: a versatile light feed for spectrographs

Masanori Iye, Noboru Ebizuka, Hideki Takami

Proceedings Volume 3355, Optical Astronomical Instrumentation; (1998) https://doi.org/10.1117/12.316770
Event: Astronomical Telescopes and Instrumentation, 1998, Kona, HI, United States

Abstract

The basic concept of a new type of versatile light feed using a microlens array and optical fibers configured as a fiber pupil slicer is described in comparison with the existing image slicers. The fiber pupil slicers will open up a wide variety of applications in feeding the images of point sources produced at telescope focus into the entrance slit of the spectrographs by transforming the beam shape as well as the focal ratio. We describe two concrete examples for applying the fiber pupil slicers on the instrumentation of the 8.2 m Subaru Telescope. (1) A new feature provided with these pupil slicers is the realization of multi-object spectroscopic mode for the High Dispersion Spectrograph with cross dispersed echelle format by squeezing the seeing disk in the narrow inter-order spacing at the expense of spectral resolution. (2) Another more obvious application is to improve the throughput and the resolving power of a given spectrograph.

Citation Download Citation

Masanori Iye, Noboru Ebizuka, and Hideki Takami "Fiber pupil-slicer: a versatile light feed for spectrographs", Proc. SPIE 3355, Optical Astronomical Instrumentation, (9 July 1998); https://doi.org/10.1117/12.316770

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

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.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available