Femto Easy BeamPro Beam Profiler
| Brand | FEMTOEASY |
|---|---|
| Origin | France |
| Model | BeamPro |
| Sensor Types | CMOS (UV–Vis–NIR), InGaAs (SWIR) |
| Pixel Sizes | 1.45–33.00 µm |
| Spectral Ranges | 190–1100 nm (UV-extended), 375–1100 nm, 400–1700 nm, 900–1700 nm |
| Max Resolution | 5472 × 3648 (20.0 MP) |
| Min Measurable Beam Diameter (FWHM) | ≤10 µm (CMOS), ≤25 µm (InGaAs) |
| Shutter Types | Rolling & Global |
| Interface | USB 3.1 (standard), GigE (TE-cooled SWIR models) |
| Bit Depth | 12/16-bit (HDR option available) |
| Trigger Support | Yes (hardware & software sync) |
| Vacuum Compatibility | Select models (upon request) |
Overview
The Femto Easy BeamPro Beam Profiler is a high-precision, modular optical measurement instrument engineered for quantitative spatial characterization of laser beams across ultrafast photonics, industrial laser processing, and advanced research laboratories. Operating on the principle of direct in-focus imaging—leveraging monolithic CMOS and InGaAs sensor architectures—the BeamPro series delivers calibrated intensity distribution data (2D/3D beam profiles), enabling rigorous calculation of ISO 11146-compliant parameters including beam width (D4σ, knife-edge), centroid position, ellipticity, M² estimation (when integrated with propagation stage), and beam propagation factor. Designed specifically for demanding applications involving tightly focused Gaussian or multimode beams—down to sub-10 µm FWHM—and large-diameter collimated or divergent beams up to Ø25 mm, the system maintains traceable linearity and photometric accuracy without reliance on relay optics or beam reduction optics that compromise fidelity. Its architecture eliminates diffraction artifacts common in pinhole-based scanning systems and avoids dynamic range compression inherent in phosphor-based cameras, making it suitable for both CW and pulsed laser sources—including single-shot measurements when synchronized via external trigger.
Key Features
- Modular sensor platform covering five distinct form factors: micro-pixel (≤1.45 µm), large-area (up to 25 × 16.1 mm), ultra-compact (≤12.5 mm depth), square-format (1:1 aspect ratio optimized for circular beams), and short-wave infrared (SWIR: 900–1700 nm with thermoelectrically cooled InGaAs options).
- Multi-spectral coverage: Standard UV–Vis–NIR (375–1100 nm); UV-extended variants (190–1100 nm) with fused silica window removal; dedicated SWIR models (400–1700 nm) featuring high quantum efficiency (>70% at 1550 nm) and low dark current.
- Calibrated pixel-level responsivity: Factory-measured flat-field correction applied per sensor unit; optional NIST-traceable calibration reports available for radiometric and geometric validation.
- High-fidelity acquisition: Global shutter (for pulse-to-pulse stability) and rolling shutter (for high frame rate) modes; real-time HDR capability (12 → 16-bit effective dynamic range) implemented via dual-exposure fusion algorithm—compliant with ISO 13694 for contrast sensitivity assessment.
- Robust mechanical design: Aluminum alloy housing with precision-machined optical mount interface (C-mount standard); vacuum-compatible variants (10⁻⁷ mbar) certified for integration into UHV laser chambers (e.g., HHG, attosecond beamlines).
Sample Compatibility & Compliance
The BeamPro supports direct measurement of free-space laser beams without beam attenuation or spatial filtering—provided appropriate neutral density (ND) filtering is applied to avoid sensor saturation or nonlinear response. It is compatible with TEM₀₀, higher-order modes, top-hat, and structured light profiles from solid-state, fiber, diode, OPO, and ultrafast amplified sources. All models comply with CE marking requirements for electromagnetic compatibility (EN 61326-1) and safety (EN 61010-1). Data integrity workflows align with GLP/GMP principles: audit trail logging, user-access controls, and timestamped metadata embedding (exposure time, gain, temperature, filter ID) are supported in the BeamStudio software environment. While not FDA-cleared as a medical device, the system meets relevant sections of IEC 60825-1 for laser radiation measurement instrumentation and is routinely deployed in ISO/IEC 17025-accredited metrology labs for beam parameter validation.
Software & Data Management
BeamStudio v4.x (Windows/macOS/Linux) provides a unified interface for real-time visualization, automated beam analysis, batch processing, and export of industry-standard formats (HDF5, TIFF, CSV, PNG). The software implements ISO 11146-1/2 algorithms for second-moment beam width, centroid drift tracking over time series, and M² approximation using variable propagation distance inputs. Advanced features include ROI-based differential analysis, background subtraction (adaptive median filtering), beam stability metrics (RMS centroid jitter, power fluctuation index), and scripting support via Python API (PyBeamStudio). All raw image data retains full bit-depth and metadata; processed results include uncertainty estimates derived from sensor noise floor (read noise + dark current) and pixel non-uniformity correction residuals. For regulated environments, optional 21 CFR Part 11 compliance package includes electronic signatures, role-based permissions, and immutable audit logs.
Applications
- Ultrafast laser lab characterization: Spatial diagnostics of Ti:Sapphire, Yb-fiber, and OPCPA outputs prior to pulse compression or frequency conversion stages.
- Industrial laser processing: In-line monitoring of beam homogeneity, focus spot size, and pointing stability in welding, cutting, and additive manufacturing systems.
- Quantum optics & cold atom setups: Mode matching verification for optical lattices, dipole traps, and cavity-enhanced experiments requiring sub-µm alignment precision.
- Biophotonics & microscopy: Verification of excitation beam quality in multiphoton, STED, and light-sheet platforms where PSF fidelity directly impacts resolution.
- Space-qualified laser comms: Beam divergence and far-field pattern validation under thermal-vacuum conditions using vacuum-rated models.
FAQ
What is the smallest beam diameter measurable with BeamPro?
The μ-BP series achieves sub-10 µm FWHM resolution (e.g., 7 µm for LP6.3 model) when used at optimal magnification and with appropriate ND filtration to maintain linear response.
Can BeamPro measure single-shot ultrafast pulses?
Yes—via hardware-triggered global shutter mode with <100 ns jitter; synchronization requires TTL-compatible external trigger input (included cable and adapter kit).
Is UV extension compatible with all models?
UV enhancement (190–1100 nm) is available only on CMOS-based models equipped with fused silica windows; SWIR variants use InGaAs-specific AR coatings and do not support UV transmission.
How is calibration traceability ensured?
Each unit ships with factory-applied flat-field and photoresponse calibration; optional NIST-traceable radiometric calibration certificates (including spectral responsivity curves) are available upon request.
Does BeamPro support vacuum integration?
Select models (e.g., BP⌀25+, BP12.12+, μ-BP variants with custom housing) are rated for operation down to 10⁻⁷ mbar; consult technical documentation for outgassing rates and mounting torque specifications.
