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LIEKKI™ Mode Field Adapter Tapers
Passive-12/125-25/250DC-PM-Taper
Passive fiber mode field adapter tapers made in the draw tower are used to connect amplifier stages of different fiber sizes together with low signal losses and high beam quality. Mode field adapter taper fibers can be coiled and packaged in similar ways than other fibers. Mode field adapters up to 40µm core size have been demonstrated to effectively keep the beam quality single-moded.
| Mechancial Property |
| Small core dia |
µm |
12.5 ± 1 |
| Small cladding dia |
µm |
125 ± 3 |
| Small coating dia |
µm |
350 ± 30 |
| Large core dia |
µm |
25 ± 2.5 |
| Large cladding dia |
µm |
250 ± 5 |
| Large coating dia |
µm |
350 ± 30 |
| Length |
m |
2 ± 0.5 |
| Optical Property |
| Core NA |
|
0.08 ± 0.01 |
| Cladding NA |
|
>0.46 |
| LP01 PER |
dB |
>20 |
| LP01 insertion loss |
dB |
<0.4 |
| Operating wavelength |
nm |
1060 ± 40 |
Features
- High polarization extinction ratio
- Excellent beam quality
- Low signal loss
Advantages
- Optically matched to common active fiber geometries
Applications
- Fundamental mode conversion between amplifier stages
- Mode cleaning (stripping HOMs) between amplifier stages
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