1.
Opt Lett
; 37(14): 2928-30, 2012 Jul 15.
Artigo
em Inglês
| MEDLINE
| ID: mdl-22825181
RESUMO
We demonstrate a midinfrared source tunable from 6.7 to 12.7 µm via difference frequency generation (DFG) in orientation-patterned GaAs, with 1.3 mW average output power. The input pulses are generated via Raman self-frequency shift of a femtosecond Tm-doped-fiber laser system in a fluoride fiber. We numerically model the DFG process and show good agreement between simulations and experiments. We use this numerical model to show an improved design using longer pump pulses.