The MKS Instruments / Ophir FL300A-LP-SH is a thermopile surface absorber head designed for high-power laser measurement across a broad spectral range. This fan-cooled sensor delivers accurate power and energy readings up to 300W with ±3% accuracy, making it suitable for demanding industrial and research laser applications. The large Ø50mm aperture and LP damage-resistant coating enable operation at power densities up to 10 kW/cm², while the integrated SH to BNC adapter connects directly to Ophir digital scales and compatible voltage-measuring instruments.
Technical Specifications
• Spectral Range: 0.19 µm to 20 µm (spectrally flat)
• Maximum Average Power: 300W
• Maximum Power Density: 10 kW/cm²
• Aperture Diameter: Ø50mm
• Power Accuracy: ±3%
• Power Linearity: ±2%
• Response Time (0–95%): 2.5s
• Energy Scales: 300J / 30J / 3J
• Energy Threshold: 50 mJ
• Surface Uniformity: ±2% over central 70%
• Cooling: Fan cooled
• Absorber Type: LP coating (damage resistant)
– Key Features
• High damage threshold suitable for demanding laser environments
• Spectrally flat response across UV, visible, and infrared wavelengths
• SH to BNC adapter for direct connection to measurement interfaces
• Large aperture geometry for efficient thermal collection
• Fast thermal response enabling real-time power monitoring
– Typical Applications
• Industrial laser machining and materials processing
• High-power laser characterization and validation
• Research and development testing across multiple wavelengths
• Multi-kilowatt laser beam profiling and power verification
– Compatibility & Integration
The FL300A-LP-SH integrates with Ophir digital power scales (300W/30W series) and legacy instruments supporting SH connector inputs. Smart display compatibility includes Centauri, StarBright, StarLite, Juno, and Juno+ systems.
