

DK Photonics L++ band ASE Broadband Light Source fully covering the wavelength range of 1573.5-1625nm in the L++band, with a spectral range exceeding 50nm and a spectral flatness of better than 2dB. Single mode fiber output power can reach up to 200mW, making it suitable for applications such as fiber optic communication and sensing.
| Optical Parameter | Unit | Typical Values | Remark |
| Wavelength range(@2.5dB) | nm | 1573.5~1626.5 | ± 0.5nm tolerance |
| Output power | mW | 200 | |
| *Power adjustable (optional) | – | Adjustment 10%~100% | Power adjustable, the spectral flatness does not change when adjusted |
| Spectral flatness | dB | 2 (Type), 3(Max) | |
| Output isolation | dB | >35 | |
| 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 | |
| Fiber Type | – | SMF-28e | |
| PDL/PER | dB | ≤0.2 | |
| 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, 30W | DC5V, <30W |
| Dimensions | B2 | M70 |
| Operation Temperature Range | -5~+35°C | |
| Operation Humidity Range | 0~70% | |
P/N: ①-②-③-④-⑤-⑥
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 |
| ASE | Wavelength Range | Output power (mW) | Fiber Type | Package Type | *Adjustable power (optional) |
| L++: L++ band | 200 | SM: SMF-28e | M: Module
B: Desktop |
*T |
If you need to customize other specifications, please provide detailed description for your requirement.