With standard technology, you have to trade large mode areas for single-mode operation, but the Crystal Fibre Large Mode Area fibers provide single-mode operation in a large wavelength range – endlessly single-mode operation.
For fibers with connectors, please see our aeroGUIDE patch cords or the SuperK CONNECT fiber delivery system.
The fibers are also available in polarizing and polarization-maintaining versions.
Features
- Endlessly single-mode operation – no higher-order mode cut-off
- Handles very high average power as well as high peak power
- Low nonlinearities
- Low fiber loss
- Mode field diameter is wavelength-independent
- Available with core sizes from 5 to 25 microns
Single mode fibers
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LMA-5
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LMA-8
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LMA-10
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LMA-12 (SMF-28 match)
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LMA-15
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LMA-20
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LMA-25
Single-mode PM fibers
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LMA-PM-5
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LMA-PM-10
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LMA-PM-15 (most popular for 532 and 1064 nm high power)
- PM-1550
Single mode fibers
| Nominal parameter | LMA-5 | LMA-8 | LMA-10 | LMA-12 | LMA-15 | LMA-20 | LMA-25 |
| Core size [µm] | 5 | 8 | 10 | 12 | 15 | 20 | 25 |
| Cladding diameter [µm] | 125 | 125 | 125 | 125 | 230 | 230 | 258 |
| Coating diameter [µm] | 245 | 245 | 245 | 245 | 350 | 350 | 342 |
| MFD @ 1064 nm (1/e2)[µm] | 4.7 | 7.5 | 8.8 | 10.3 | 12.8 | 16.5 | 20.9 |
| Relative power handling | Low | Low | Moderate | Moderate | High | High | High |
| Relative bend loss at short WL | Low | Low | Moderate | High | Moderate | High | High |
| Min. WL [nm] | 400 | 400 | 500 | 700 | 500 | 600 | 800 |
| Max. WL [nm] | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 |
Single-mode PM fibers
| Nominal parameter | LMA-PM-5 | LMA-PM-10 | LMA-PM-15 |
| Core size [µm] | 5 | 10 | 15 |
| Cladding diameter [µm] | 125 | 230 | 230 |
| Coating diameter [µm] | 245 | 350 | 350 |
| MFD @ 1064 nm (1/e2)[µm] | 4.4 | 8.6 | 12.6 |
| Relative power handling | Low | Moderate | Moderate |
| Relative bend loss at short WL | Low | Moderate | Moderate |
| Min. WL [nm] | 400 | 500 | 600 |
| Max. WL [nm] | 1200 | 1700 | 1700 |
