

DK Photonics 1550nm 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, which can provide desktop or modular packaging.
| Optical Parameter | Unit | Typical Values | Remark | |
| Center wavelength | nm | 1550 | 1535~1565nm Optional | |
| Wavelength accuracy | nm | ±0.5 | ||
| Spectrum Linewidth | nm | ≤0.1 | ||
| Operating mode | – | CW | Continuous wavelength | |
| Sideband Rejection Ratio | dB | >50 | ||
| Output Power | dBm | 30/33/37/40/41/43 | Customized | |
| 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 | Only used for low-power testing | |
| Electrical and environmental parameters | Desktop | Module | |||
| Control Mode | Touch screen/RS232 | RS232 | |||
| Communication interface | DB9 female | DB9 female | |||
| Power Supply | AC 100~240V, 150W | DC12V, 60W | |||
| Optical power(dBm) | 30/33 | 37/40/41/43 | 30/33 | 37/40 | |
| Dimensions | B2 | B3 | M21 | M31 | M70 |
| Heat dissipation method | built-in air cooling | contact heat dissipation | air cooling | built-in air cooling | |
| Operation Temperature Range | -5~+35°C | ||||
| Operation Humidity Range | 0~70% | ||||
| ① | ② | ③ | ④ | ⑤ |
| FL | Operation Wavelength | Output power (W): 5/10/15 | Fiber Type | Package Type |
| 1550 | Output power (dBm): 30/33/37/40/43 | SM: SMF-28e
PM: PM1550 panda |
M21/M31/M70: Module
B: Desktop |
If you need to customize other specifications, please provide detailed description for your requirement.