

DK Photonics 1570nm fiber laser light source adopts DFB semiconductor laser chip, single-mode optical fiber output, professionally designed driving circuit and TEC control to ensure laser safety and stability. Suitable as a pump laser source for thulium doped fiber lasers or fiber amplifiers, which can provide desktop or modular packaging.
| Optical Parameter | Unit | Typical Values | Remark | ||
| Center wavelength | nm | 1570, 1590 | |||
| Wavelength accuracy | nm | ±1 | |||
| Spectrum Linewidth | nm | ≤0.1 | |||
| Operating mode | – | CW | Continuous wavelength | ||
| Sideband Rejection Ratio | dB | >50 | |||
| Output Power | Low power | mW | 10/20/50/100/200/400/500 | Customized | |
| Hight power | dBm | 30/33/35/37/40 | |||
| Power adjustment range | – | 10~100% | |||
| Short-term Stability (15 Minutes) | dB | ≤ ±0.02 | Equivalent ≤ ± 0.5% | ||
| Long-term Stability (8 Hours) | dB | ≤ ±0.05 | Equivalent ≤ ± 1.2% | ||
| Polarization state | – | random | linear polarization | ||
| PER | dB | / | >23 | ||
| Fiber Type | – | SMF-28e | PM1550 | ||
| Optical Connector | – | FC/APC | |||
| Electrical and environmental parameters | Desktop | Module | ||
| Control Mode | Touch screen/RS232 | RS232 | ||
| Communication interface | DB9 female | DB9 female | ||
| Power Supply | AC 100~240V, 150W | DC5V, 30W | DC12V, 80W | |
| Optical power(mW)-Low power | 100/200/300/400 | 500 | 100/200/300/400 | 500 |
| Dimensions | B1 | B2 | M20 | M31 |
| Optical power(dBm)-High power | 30/33/35 | 37/40 | 30/33/35 | 37/40 |
| Dimensions | B2 | B3 | M31 | M70 |
| Operation Temperature Range | -5~+35°C | |||
| Operation Humidity Range | 0~70% | |||
| ① | ② | ③ | ④ | ⑤ |
| Operation Wavelength | Output power | Fiber Type | Package Type | |
| FL | 1570/1590 | 10/20/50/100/200/400/500 (mW) | SM: SMF-28e
PM: PM1550 panda |
M20/M31/M70: Module
B1/B2/B3: Desktop |
| FLH | 30/33/35/37/40 (dBm) |
If you need to customize other specifications, please provide detailed description for your requirement.