1.
Opt Lett
; 48(21): 5799-5802, 2023 Nov 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-37910762
RESUMO
We designed and fabricated a double-layered structure Er3+:Ta2O5 waveguide and investigated its optical amplification performance in C band. The pump laser threshold for zero gain at 1533â nm was 2.5â mW, and the internal net gain was â¼4.63â dB/cm for a lunched pump power of 36.1â mW at 980â nm and signal input power of -30.0â dBm (1â µW). The relationship between the internal gain and the signal input power was also investigated, and a large internal net gain of 10.58â dB/cm was achieved at a signal input power of â¼-47.1â dBm. The results confirm the potentials of the use of Ta2O5 as a host material for optical waveguide amplification.