Phase-matched third-harmonic generation in highly germanium-doped fiber.
Phase-matched third-harmonic generation is demonstrated in a germanium-doped optical fiber. Green light at 514.4 nm is generated in an LP(03) mode when a pump field at ~1543.3 nm is launched into the fiber in the fundamental LP(01) mode. The phase matching is achieved for a particular combination of the germanium doping concentration and the fiber core diameter.
Laboratoire de Photonique et de Nanostructures CNRS-UPR 020, Marcoussis, France. kamel.bencheikh@lpn.cnrs.fr
K
K
Bencheikh
S
S
Richard
G
G
Mélin
G
G
Krabshuis
F
F
Gooijer
J A
JA
Levenson