Simultaneous spatial and spectral transparency in ultralong fiber lasers.
We demonstrate that ultralong Raman lasers can be used to generate a transmission medium with simultaneous transparency over the spatial and the spectral domains. Numerical calculations show this cross-domain transparency to be preserved when the medium is used for transmitting high-intensity signals, which makes ultralong lasers an ideal experimental test bed for the study of multifrequency nonlinear interactions in optical fiber waveguides. Full spatiospectral transparency is experimentally obtained over a 20 nm x 20 km window.
Photonics Research Group, School of Engineering and Applied Science, Aston University, Birmingham, United Kingdom.
J D
JD
Ania-Castañón
V
V
Karalekas
P
P
Harper
S K
SK
Turitsyn