Designed for high-power continuous-wave fiber lasers. Adopting plum-blossom petal-style fiber groove structure, it enables neat coiling of gain fiber and efficient uniform heat dissipation. The water cooling cavity is fabricated by vacuum brazing or friction stir welding, and undergoes strict hydrostatic & helium leak testing to guarantee long-term stable operation of high-power lasers.

 

 

The plum-blossom shaped fiber liquid cold plate, also named plum-blossom disk cold plate, serves as the core heat dissipation component in the resonant cavity of high-power fiber lasers. Plum-blossom petal fiber grooves are precision milled on the surface via CNC machining for embedding and fixing coiled gain fiber. Integrated water cooling channels inside the plate connect to an external chiller to continuously remove massive waste heat generated during fiber operation.

 

Its unique symmetrical plum-blossom layout greatly reduces temperature difference across the entire fiber coil and eliminates local hotspots. It prevents fiber thermal damage, power attenuation and wavelength drift, and is widely applied in industrial fiber laser cutting, welding and cladding equipment of 3kW~20kW and above.

 

Aluminum alloy or oxygen-free copper base materials are optional. Customization of petal quantity, groove profile, flow channel structure and connector positions is available per customer drawings to meet diverse laser structural design requirements.

 

 

Plum-Blossom Uniform Temperature Structure, Minimal Full-Range Temperature Difference Multi-petaled symmetrical fiber coiling grooves ensure consistent heat exchange conditions for all fiber sections with even temperature distribution, restraining local hotspots and securing stable laser output.

 

Precision Fiber Grooves to Protect Gain Fiber One-piece CNC milling process. Full rounded and deburred groove edges, high-precision control over groove width and depth to avoid sharp edges scratching fiber coating. It also standardizes fiber bending radius and prevents fiber microbending loss.

 

High-Strength Sealed Water Cooling Cavity Vacuum brazing or friction stir welding processes optional. Cavity passes hydrostatic pressure resistance test and helium leak detection for superior sealing performance, eliminating water leakage risk and protecting costly optical components.

 

High-Thermal-Conductivity Substrate, Anti-Corrosion & Insulating 6061/6063 aluminum alloy as standard material; high thermal conductivity copper version optional. Hard anodizing surface treatment delivers insulation and resistance to electrochemical corrosion, compatible with deionized water cooling systems.

 

High Customization for Multiple Power Models Petal count, fiber coiling diameter, fiber groove specifications, inlet/outlet nozzle orientation, mounting holes and locating pins can all be customized. Compatible with various fiber lasers ranging from 3kW up to 20kW+.

 

Integrated Design for Simplified Assembly Pre-drilled standard mounting holes and locating pin holes. Some versions reserve mounting positions for pump LD chips, reducing total component count and facilitating laser assembly and commissioning.

 

 

Front Side: Plum-Blossom Petal Fiber Grooves Multi-turn continuous petal-shaped recesses for embedding and coiling gain fiber, securing fiber and establishing stable thermal contact. Grooves are rounded to protect optical fiber.

 

Base Heat Transfer Layer Aluminum alloy / copper substrate acts as the heat sink for fiber heat conduction, rapidly transferring heat from fiber to internal cooling channels.

 

Internal Water Cooling Flow Channels Built-in parallel cooling channels with optimized pressure drop. Cooling water circulates within the cavity to continuously carry away substrate heat. Flow channels are optimized by fluid simulation for uniform heat exchange.

 

Inlet & Outlet Ports Standard quick connectors or threaded interfaces compatible with industrial chillers for deionized cooling water access.

 

Rear / Side Sides: Mounting & Positioning Structure Reserved screw mounting holes and locating pin holes for fixing the cold plate onto the laser frame.

 

 

✅ Industrial high-power continuous-wave fiber lasers ✅ Laser cutting, laser welding and laser cladding equipment ✅ High-power fiber light sources and scientific research laser systems ✅ Thermal management for resonant cavities of medium & high power fiber amplifiers