Thorlabs无截止单模，大模场面积光纤

Item #

ESM-12B

LMA-20

LMA-25

Optical
Properties

Mode Field Diametera

10.3 ± 1 µm @ 1064 nm

10.5 ± 1 µm @ 1550 nm

16.4 ± 1.5 µm @ 780 nm

16.5 ± 1.5 µm @ 1064 nm

20.6 ± 2.0 µm @ 780 nm

20.9 ± 2.0 µm @ 1064 nm

Single Mode Cut-Off Wavelength

Noneb

Attenuationc

< 3 dB/km @ 1550 nm

< 8 dB/km @ 1064 nm

< 20 dB/km @ 780 nm

< 5 dB/km @ 1064 nm

< 7 dB/km @ 780 nm

< 25 dB/km @ 632 nm

< 5 dB/km @ 1064 nm

< 2 dB/km @ 1550 nm

Dispersion

(Click for Details)

Numerical Aperture (5%)

0.09 ± 0.02 @ 1064 nm

0.06 ± 0.02 @ 1064 nm

0.048 ± 0.02 @ 1064 nm

Mode Field Area

-

~215 µm2

~265 µm
2

Core Index

Proprietaryd

Cladding Index

Proprietaryd

Physical
Properties

Signal Core Diametere

12.2 ± 0.5 µm

19.9 ± 0.5 μm

25.1 ± 0.5 μm

Outer Cladding Diameter, OD

125 ± 5 µm

230 ± 5 μm

258 ± 5 μm

Coating Diameter

245 ± 10 µm

350 ± 10 μm

342 ± 10 μm

Cladding Material

Pure Silica

Coating Material

Acrylate, Single Layer

Proof Test Level

0.5%

0.33%

0.33%

Item #

LMA-PM-5

LMA-PM-10

LMA-PM-15

Optical Properties

Mode Field Diametera

4.2 ± 0.5 μm

8.0 ± 0.8 μm

12.5 ± 0.5μm

Attenuationb

< 30 dB/km @ 470 nm

< 10 dB/km @ 800 nm

< 30 dB/km @ 470 nm

< 5 dB/km @ 1060 nm

< 5 dB/km @ 1550 nm

< 15 dB/km @ 1000 nm

< 10 dB/km @ 1550 nm

< 25 dB/km @ 800 nm

Dispersion

(Click for Details)