Collimated focal ratio degradation testing for highly multiplexed fiber systems-an improvement to a standard test.
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.
Daniel
D
Finstad
Edward
E
Wishnow
Claire
C
Poppett
Martin
M
Sirk
Jerry
J
Edelstein
Steve
S
Gibson
Geoff
G
Marcy
Andrew
A
Howard