- Description
- Description
- Features
P-SM-5, P-SM-7, P-SM-8 series are specially designed for highly efficient Raman lasers and amplifiers operating in the 1.1-1.6 µm spectral range. The main advantage of phosphorus-doped fiber is a three times higher value of the Raman shift as compared to germanium-doped fibers. This feature allows one to strongly simplify the Raman fiber laser and amplifier design. For example, to construct a high-power laser @ 1480nm required for pumping Er-doped fibers, only two cascades of Raman wavelength transformation are necessary, whereas six cascades are necessary in the case of Ge-doped fibers.
Fiber specifications
| Model | P-SM-5 | P-SM-7 | P-SM-8 |
| Core diameter, µm | 5.0 ± 0.5 | 5.0 ± 0.6 | 5.5 ± 0.5 |
| Clad diameter, µm | 125 ± 1 | 125 ± 1 | 125 ± 1 |
| Core NA | 0.18 | 0.18 | 0.18 |
| MFD @ 1550nm, µm | 4.0 ± 0.5 | 4.0 ± 0.5 | 4.0 ± 0.5 |
| Cutoff wavelength, µm | 0,95 ÷ 1,05 | 0,9 ÷ 1,25 | 0,9 ÷ 1,25 |
| Optical loss (1064 nm), dB/km | < 2.0 | < 2.9 | < 2.1 |
| Optical loss (1240 nm), dB/km | < 1.2 | < 1.95 | < 1.1 |
| Optical loss (1480 nm), dB/km | < 1.0 | < 1.45 | < 1.0 |
| Raman gain, dB/km×W | > 5.8 | > 6 | < 5 |
| Nonconcentricity, µm | < 1 | < 1 | < 1 |
Other parameters including PM version are available on the request
SC «LLS» is the official distributor of FORC-Photonics and offers full technical support and worldwide shipping of products.
Features
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ParameterValue
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Core diameter5 µm
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Clad diameter125 µm
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Nonconcentricity< 1 µm
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Core NA~ 0.18
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Cut-off wavelength~ 1 µm
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Raman gain> 6 dB/km×W
