

DK Photonics 2000nm 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 | 1940, 2009 | ||
| Wavelength accuracy | nm | ±5 | ||
| Operating mode | – | CW | Continuous wavelength | |
| Spectrum Linewidth | nm | ≤0.1 | ||
| Sideband Rejection Ratio | dB | >50 | ||
| Output Power | dBm | 7/20/30/33/37/40 | *33-40dBm only available for desktop | |
| 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 | – | SM1950 | PM1950 | |
| 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, 50W | DC12V, 60W | |
| Optical power(dBm) | 7/20/30 | 33/37/40 | 7/20/30 |
| Dimensions | B2 | B3 | M70 |
| Operation Temperature Range | -5~+35°C | ||
| Operation Humidity Range | 0~70% | ||
| ① | ② | ③ | ④ | ⑤ |
| FL | Operation Wavelength | Output power (dBm) | Fiber Type | Package Type |
| 2000 | 7/20/30/33/37/40 | SM: SM1950
PM: PM1550 panda |
M: Module
B: Desktop |
If you need to customize other specifications, please provide detailed description for your requirement.