掺鉺光纤
单模或双包层产品,应用于高功率场合。
Parameters
系列 |
峰值吸收 @1530nm |
应用 |
纤芯直径 |
包层 直径 |
同圆度 |
EDF 4/125 |
10 dB/m |
To achieve the highest efficiency of telecommunication amplifiers |
4um |
125um |
<0.5um |
25 dB/m |
To minimize the amplifier length without pump-to-signal conversion efficiency degradation |
4um |
125um |
<0.5um |
|
50 dB/m |
For amplification of ultra-short pulses, when high efficiency, a short amplifier length and a high negative dispersion (-30..-50 ps/nm/km) are required |
3.5um |
125um |
<0.5um |
|
EDF 14/125 |
35 dB/m |
For low-nonlinearity and high pulse energy amplifiers, highest power conversion efficiency 36% |
14um |
125um |
<1um |
非标准产品 |
LMA (MFD~25um)、高掺杂(应用于超低非线性放大) 双包层(100W高功率、且效率高达40%的场合) |
型号 |
数值孔径 |
MFD @ 1550nm [µm] |
峰值吸收 [dB/m] |
截止波长 [nm] |
|||
980nm |
1480nm |
1530nm |
1200nm (grey loss) |
||||
EDF-4/125-10 |
0.22&plu***n;0.04 |
6.5&plu***n;1 |
6&plu***n;1 |
4.5&plu***n;1 |
10&plu***n;3 |
<0.01 |
<980 |
EDF-4/125-25 |
0.24&plu***n;0.04 |
6&plu***n;1 |
14&plu***n;2 |
11&plu***n;2 |
25&plu***n;5 |
<0.02 |
<980 |
EDF-4/125-50 |
0.28&plu***n;0.02 |
5.5&plu***n;1 |
30&plu***n;5 |
20&plu***n;5 |
50&plu***n;15 |
<0.03 |
<980 |
EDF-14/125-35 |
0.09&plu***n;0.02 |
15&plu***n;2 |
15&plu***n;3 |
12&plu***n;3 |
35&plu***n;10 |
<0.02 |
~1350 |
色散 @ 1550nm: -36 ps/nm/km (可定制< -50 ps/nm/km)
色散斜率 @ 1550nm: < 0.03 ps/nm2/km
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