Demonstration of a multiwave coherent holographic beam combiner in a polymeric substrate.
We demonstrate an efficient coherent holographic beam combiner (CHBC) that uses angle multiplexing of gratings in a thick polymeric substrate. Our experimental results compare well with the theoretical model based on the coupled-wave theory of multiwave mixing in a passive medium. A CHBC of this type may prove useful in producing a high-power laser by combining amplified beams produced by splitting a master oscillator. Furthermore, the ability to angle multiplex a large number of beams enables a CHBC to be used in multiple-beam interferometry applications as a high-precision surface sensor.
Yum
H N
HN
Department of Electrical Engineering, Texas A&M University, College Station 77843, USA.
Hemmer
P R
PR
Heifetz
A
A
Shen
J T
JT
Lee
J K
JK
Tripathi
R
R
Shahriar
M S
MS