Bi-doped fiber amplifiers in the E + S band with a high gain per unit length.
Opt Lett
; 48(21): 5635-5638, 2023 Nov 01.
Article
em En
| MEDLINE
| ID: mdl-37910721
ABSTRACT
We present a bismuth (Bi)-doped fiber amplifier (BDFA) operating in the 1400-1480â
nm range using 35 m of Bi-doped germanosilicate fiber. A maximum gain of 23â
dB for an input signal of -23dBm at 1440â
nm has been achieved, which, to the best of our knowledge, is the highest gain per unit length of 0.66â
dB/m reported for a BDFA. The 3â
dB bandwidth is measured to be 40â
nm (1415-1455â
nm), and the gain coefficient is 0.2â
dB/mW. A further temperature dependence study of BDFA across the temperature range of -60°C to 80°C also showed a negligible effect of temperature on the E + S band BDFA gain.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2023
Tipo de documento:
Article