Use of a dielectric stack as a one-dimensional photonic crystal for wavelength demultiplexing by beam shifting.
We demonstrate the use of a 30-period dielectric stack structure as a highly dispersive device to spatially separate two beams with a 4-nm wavelength difference by more than their beam width. Unlike previous devices, our structure is simple to fabricate and relatively compact. We discuss possible applications of our device within wavelength-division multiplexing systems.
Nelson
B E
BE
Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305-4085, USA.
Gerken
M
M
Miller
D A
DA
Piestun
R
R
Lin
C C
CC
Harris
J S
JS