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±0.04

6.5±1

6±1

4.5±1

10±3

<0.01

<980

EDF-4/125-25

0.24±0.04

6±1

14±2

11±2

25±5

<0.02

<980

EDF-4/125-50

0.28±0.02

5.5±1

30±5

20±5

50±15

<0.03

<980

EDF-14/125-35

0.09±0.02

15±2

15±3

12±3

35±10

<0.02

~1350