Phase locking and in-phase supermode selection in monolithic multicore fiber lasers.
We report a compact multicore fiber laser that utilizes an all-fiber approach for phase locking and in-phase supermode selection. By splicing passive coreless fibers of controlled lengths to both ends of an active 19-core fiber, we demonstrate that the fundamental in-phase supermode can be selectively excited with a completely monolithic fiber device, instead of conventional free-space and bulk optics, to achieve phase-locked operation for a multiemitter laser device.
Li
L
L
College of Optical Sciences, Unviersity of Arizona, Tuscon, Arizona 85721, USA. lli@email.arizona.edu
Schülzgen
A
A
Chen
S
S
Temyanko
V L
VL
Moloney
J V
JV
Peyghambarian
N
N