1.
Appl Opt
; 55(25): 6829-31, 2016 Sep 01.
Article
in English
| MEDLINE
| ID: mdl-27607255
ABSTRACT
A simple method for determining the focal ratio degradation of optical fibers has been developed. The method involves splitting the light from the test fiber and recording ring patterns that have traveled over two different, and known, optical paths. This new method will be valuable for testing many fibers as will be needed for new multiobject astronomical spectrographs.