Coherent PowerLine L 400 (Nd:YAG)
High-Energy Q-Switched · Germany / USA — Q-switched Nd:YAG DPSS — Fixed pulse width, very high pulse energy (10–100 mJ). Optimized for interfacial detachment of thick coatings. Pulse width is not operator-adjustable.
OEM Laser Source Module
This is a laser source module sold to system integrators — not a complete laser cleaning machine. Specifications reflect the bare source only. End-user systems built on this module will vary in beam delivery, scan head, and enclosure.
Derived Parameters
| Peak power | 429 kW |
| Fluence at 2 mm spot | 0.955 J/cm² |
| Fluence at 5 mm spot | 0.153 J/cm² |
| Overlap (cleaning) | 60–80% |
Field spot diameter varies by scan head — 2 mm and 5 mm are representative values for handheld cleaning heads.
Derived from published specifications.
Published Specifications
| Brand | Coherent |
| Model | PowerLine L 400 (Nd:YAG) |
| Origin | Germany / USA |
| Laser type | Q-switched Nd:YAG DPSS |
| Wavelength | 1064 nm |
| Average power | 325 W |
| Max pulse energy | 30 mJ |
| Pulse width | 70 ns (fixed) |
| Pulse frequency | 6–50 kHz |
| Cooling | Water |
| Beam quality (M²) | < 2 |
Source: https://www.coherent.com
Compatible Material Pages
Laser cleaning parameters for common materials processed by fiber laser systems.
Specifications sourced from manufacturer datasheets. Values are reference data — validate against your machine's actual calibration before production use.