DK Photonics Erbium-doped Fiber Pre-Amplifier for L-band (PA:PA amplifier) is an amplifier specifically designed for weak light signals in the L-band range of -45dBm~-25dBm. The typical gain of small signals is up to 45dB, and it has a low noise index. It is usually used before photodetectors to improve their detection ability for weak light signals.
| Optical Parameter | Unit | Typical Values | Remark | |
| Wavelength Range | nm | 1570~1603 | L-band | |
| Input Power | dBm | -45~-25 | ||
| Gain coefficient | dB | 45 | @-45dBm input | |
| Noise | dB | ≤4.5 | ||
| Polarization extinction ratio (PER) | dB | – | ≥23 | |
| Polarization Dependent Gain | dB | ≤0.3 | – | |
| Polarization Mode Dispersion | ps | 0.5 | – | |
| Input/output Isolation | dB | >35 | ||
| Optical power monitoring | – | Intput optical power monitoring; Output optical power monitoring | ||
| Fiber Type | – | SMF-28e | PM1550 | 1.0m length |
| Optical Connector | – | FC/APC | only for low power test | |
| Working mode | – | ACC | *Note 1 | |
| Electrical and environmental parameters | Desktop | Module |
| Control Mode | Touch screen/ RS232 | RS232 |
| Communication Interface | DB9 Female | DB9 Female |
| Power Supply | 100~240V AC, <30W | 5V DC, <15W |
| Dimensions(mm) | 255(W)×285(D)×115(H) | 125(W)×150(D)×20(H) |
| Cooling method | Internal air cooling | Contact heat dissipation |
| Operation Temperature Range | -5~+35°C | |
| Operation Humidity Range | 0~70% | |
*Note 1:
When you inquire, please provide the correct P/N number according to our ordering information, and attach the appropriate description would be better.
| ① | ② | ③ | ④ | ⑤ | ⑥ |
| EDFA | Operation Wavelength | Amplifier type | Small signal gain (dB) | Fiber Type | Package Type |
| L: L-band | PA: Small signal amplifier | 45: 45dB@-45dBm | SM: SMF-28e
PM: PM1550 |
M: Module
B: Desktop |
If you need to customize other specifications, please provide detailed description for your requirement.
DownloadDatasheet in PDF