Bismuth doped fibers
BGDF-SM-7/125-1430
Bismuth-Germanium codoped fiber BGDF-SM-7/125-1430 series is specially designed for typical application for amplifiers, lasers, superfluorescent fiber sources operating at 1370-1490nm.
Minimal fiber length required for 25 dB gain at 1430 nm L=85m (actual length depends on pump and signal power)
Minimal fiber length required for 25 dB gain in the range 1.41-1.45 L=100m (actual length depends on pump and signal power).
Minimal fiber length required for 25 dB gain at 1430 nm L=85m (actual length depends on pump and signal power)
Minimal fiber length required for 25 dB gain in the range 1.41-1.45 L=100m (actual length depends on pump and signal power).
Bismuth doped fibers | BGDF-SM-7/125-1430 |
| Wavelength range, nm | 1370 ÷ 1490 |
| Core diameter, µm | 6.5 ± 0.6 |
| Clad diameter, µm | 125 ± 5 |
| Coating diameter, µm | 230 ± 20 |
| Coating material type | silicon rubber |
| Core NA | 0.14 ± 0.02 |
| Cutoff wavelength, µm | 1.15 ± 0.1 |
| Core absorption (1350 nm), dB/m | 0.3 ± 0.06 |
| Amplification range (-3dB), nm | 1410 ÷ 1450 |
| Typ. peak gain (@1430 nm), dB/m | > 0.3 (Pp ~ 200mW at 1310nm) |
| Typ. gain (@1410 ÷ 1450 nm), dB/m | > 0.2 (Pp ~ 200mW at 1310nm) |
| Typ. gain for Polarization maintaining fiber version (@1410 ÷ 1450 nm), dB/m | > 0.3 |
| Tipical laser eff-cy, % | > 50% (vs pump power at 1310 nm) |
| Splice loss with SMF28 (@1310), dB | ~ 0.2 |
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