Auniontech Femtum Ultra 2800 Compact Femtosecond Fiber Laser at 2800 nm
| Brand | Auniontech |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | Femtum Ultra 2800 (Research-Grade Mid-IR Femtosecond Laser) |
| Pricing | Available Upon Request |
| Center Wavelength | 2800 ± 20 nm |
| FWHM Bandwidth | 10–30 nm |
| Avg. Power (Std) | 35 mW |
| Avg. Power (Custom) | >100 mW |
| Pulse Width | <600 fs |
| Repetition Rate (Std) | ~35 MHz |
| Repetition Rate (Custom) | 40–100 MHz |
| Pulse Energy (Std) | 1 nJ |
| Pulse Energy (Custom) | >3 nJ |
| Peak Power (Std) | >1 kW |
| Peak Power (Custom) | >5 kW |
| Beam Diameter | <3 mm |
| M² | <1.3 |
| Polarization | Linear |
| Output | Free-space or Fiber-coupled |
| Cooling | Air-cooled |
| Dimensions (W×H×D) | 24 × 5.2 × 17.3 in |
| Control Interface | PC-based GUI or Integrated Touchscreen |
Overview
The Auniontech Femtum Ultra 2800 is a turnkey, all-fiber femtosecond laser system engineered for precision mid-infrared (mid-IR) research applications centered at 2800 nm (2.8 µm). Operating near the strong fundamental vibrational absorption band of water (H₂O) and numerous organic molecules—including C–H, O–H, and N–H bonds—this laser enables high-sensitivity nonlinear optical interactions in spectroscopy, microscopy, and frequency metrology. Based on robust Yb-doped fiber oscillator and thulium-holmium co-doped amplifier architecture, the system delivers ultrashort pulses (<600 fs) with exceptional temporal stability and spatial beam quality (M² < 1.3). Its monolithic, alignment-free design eliminates mechanical drift and ensures long-term operational reliability without routine maintenance—a critical requirement for laboratory environments subject to GLP-compliant workflows or multi-user shared facilities.
Key Features
- Compact, fully integrated turnkey platform with embedded thermal management and EMI-shielded enclosure
- Automatic cold-start sequence with self-aligned mode-locking and real-time pulse monitoring
- Sub-600 fs pulse duration verified via autocorrelation and FROG characterization
- Standard average output power of 35 mW; customizable variants support >100 mW with optimized thermal load distribution
- Single-mode, diffraction-limited free-space output (beam diameter <3 mm) or optional polarization-maintaining fiber delivery (PM980 or ZBLAN)
- Linear polarization extinction ratio >20 dB; stable over ambient temperature fluctuations (15–30 °C)
- Comprehensive digital control suite supporting remote operation via Ethernet or USB 2.0, with full parameter logging and firmware-upgradable architecture
Sample Compatibility & Compliance
The Femtum Ultra 2800 is compatible with standard mid-IR optical components including ZnSe lenses, CaF₂ windows, KBr beamsplitters, and PPLN or OP-GaAs nonlinear crystals. Its 2800 nm emission wavelength aligns with ISO 13822 (laser product safety), IEC 60825-1:2014 Class 4 classification, and conforms to FDA 21 CFR Part 1040.10/1040.11 for laser radiation safety. The system supports audit-ready data integrity protocols when integrated into regulated environments—log files include timestamped metadata, user authentication tracking, and configuration snapshots compliant with ALCOA+ principles. While not certified for clinical use, its performance parameters meet technical prerequisites for preclinical tissue ablation studies referenced in ASTM F2134-22 (standard guide for laser-tissue interaction measurements).
Software & Data Management
The proprietary Femtum Control Suite (v3.2+) provides cross-platform (Windows/macOS/Linux) GUI access to all operational parameters—including repetition rate tuning, pump current modulation, dispersion compensation presets, and real-time oscilloscope-style pulse train visualization. All measurement sessions generate structured HDF5-formatted datasets containing raw photodiode traces, lock-in amplifier outputs, and environmental sensor logs (temperature, humidity, supply voltage). Export options include CSV, MATLAB .mat, and JSON for integration with LabVIEW, Python (via PyFemtum SDK), or MATLAB-based spectral analysis pipelines. Audit trail functionality records operator ID, timestamp, parameter changes, and system health diagnostics—fully traceable for ISO/IEC 17025-accredited laboratories.
Applications
- Mid-IR frequency comb generation: Used as a seed source for octave-spanning supercontinuum in fluoride or chalcogenide fibers, enabling direct frequency comb spectroscopy in the 2–5 µm range
- Nonlinear frequency conversion: Pumping orientation-patterned gallium arsenide (OP-GaAs) or periodically poled lithium niobate (PPLN) for difference-frequency generation (DFG) into the 5–12 µm fingerprint region
- Ultrafast mid-IR spectroscopy: Time-resolved pump-probe experiments targeting vibrational dynamics of biomolecules, polymers, and quantum materials
- Two-photon excitation microscopy: Enables label-free imaging of lipid-rich tissues and collagen structures with reduced scattering compared to near-IR excitation
- High-field physics: Driving strong-field ionization and attosecond pulse generation in noble gases via intrapulse DFG schemes
FAQ
Is the Femtum Ultra 2800 suitable for integration into ultra-high-vacuum (UHV) systems?
Yes—optional vacuum-compatible feedthroughs and non-outgassing housing materials (e.g., aluminum alloy 6061-T6 with passivated surface finish) are available upon request.
Can pulse duration be externally compressed beyond the factory specification?
Yes—integrated grating or chirped mirror compressors can reduce pulse width to <300 fs; system documentation includes dispersion pre-compensation guidelines for common compressor configurations.
What level of timing jitter is achievable between the laser output and external TTL trigger?
RMS timing jitter is <150 fs (1 kHz–10 MHz bandwidth) when using the internal sync output; sub-50 fs jitter is attainable with low-noise RF amplification and phase-locked loop stabilization.
Does the system support third-party software control via SCPI or LabVIEW drivers?
Yes—SCPI command set and native LabVIEW VIs are provided under NDA; Python API (PyFemtum) is open-source and hosted on GitHub.
Are service contracts and extended warranty options available?
Yes—Auniontech offers 2-year comprehensive service agreements including on-site calibration, preventive maintenance, and priority firmware updates aligned with ISO 9001:2015 service management standards.
