Auniontech CW NIR Fiber Laser System
| Brand | Auniontech |
|---|---|
| Model | CW NIR Fiber Laser |
| Type | Continuous-Wave (CW) Single-Mode Polarized Fiber Laser |
| Wavelength Range | 465–1660 nm (standard discrete lines: 976, 1030–1660 nm) |
| Wavelength Accuracy | ±0.5 nm |
| Long-Term Wavelength Stability | ±0.02 nm (8 h) |
| Output Power | 1–50 W (air-cooled), 50–100+ W (water-cooled) |
| Linewidth | < 0.1 nm (typical, FBG-stabilized) |
| Polarization Extinction Ratio | > 20 dB (>99%) |
| Beam Quality | M² < 1.1 (diffraction-limited) |
| Power Stability (8 h) | ±1% RMS |
| Power Tunability | 20–100% of rated output |
| Cooling | Air-cooled (OEM module / 2RU rackmount), Water-cooled (industrial rack cabinet) |
| Fiber Coupling | SM PM fiber (FC/PC, FC/APC, bare fiber options) |
| coupling efficiency | 75–80% |
| Compliance | CE, RoHS, IEC 60825-1 (Class 4 laser product) |
Overview
The Auniontech CW NIR Fiber Laser System is a high-stability, narrow-linewidth continuous-wave fiber laser platform engineered for precision applications in scientific research, industrial processing, and optical metrology. Based on ytterbium-, erbium-, or thulium-doped double-clad fiber gain media and stabilized via intra-cavity fiber Bragg gratings (FBGs), this system delivers spectrally pure, linearly polarized output with true diffraction-limited beam quality (M² < 1.1). Unlike diode-pumped solid-state (DPSS) or free-space semiconductor lasers, the monolithic all-fiber architecture eliminates alignment sensitivity, ensures long-term pointing stability, and enables robust operation under thermal and mechanical stress. The laser operates across an exceptionally broad near-infrared spectrum — from visible-edge (465 nm, achieved via frequency doubling in external modules) up to 1660 nm — with discrete, factory-qualified wavelengths including 976 nm (pump band), 1030 nm (Yb³⁺ fundamental), 1550 nm (Er³⁺ C-band), and extended bands up to L-band (1625–1660 nm). All units are fully compliant with IEC 60825-1 Class 4 safety requirements and designed for integration into ISO/IEC 17025-accredited laboratories or GMP-aligned manufacturing environments.
Key Features
- Fully FBG-wavelength-locked architecture ensuring spectral fidelity and minimal mode hopping
- Active power stabilization circuitry delivering ≤ ±1% RMS output fluctuation over 8 hours
- Integrated intelligent GUI (Windows/Linux compatible) supporting remote control via USB, RS232, or Ethernet (TCP/IP)
- Compact OEM laser head (1U footprint) and modular 2RU rack-mount chassis for lab deployment
- Industrial-grade water-cooled rack cabinet (19″, 4U) for high-power configurations (≥50 W)
- Linear polarization purity >99% (PER >20 dB) maintained across full power tuning range (20–100%)
- No consumables or periodic realignment required; mean time between failures (MTBF) >50,000 hours
Sample Compatibility & Compliance
This laser system is compatible with standard single-mode polarization-maintaining (PM) fibers (e.g., Panda or Bow-tie type) and supports direct coupling into SMF-28, PM980, or PM1550 fibers with FC/PC, FC/APC, or bare-fiber termination options. Coupling efficiency is consistently maintained at 75–80% across the 465–1550 nm range. The system meets CE marking requirements for electromagnetic compatibility (EN 61326-1) and laser safety (EN 60825-1:2014). It supports audit-ready logging features aligned with GLP/GMP workflows, including timestamped power logs, temperature history, and interlock event records — essential for FDA 21 CFR Part 11-compliant documentation in regulated biophotonics or pharmaceutical QA/QC applications.
Software & Data Management
The embedded firmware supports SCPI command set compliance, enabling seamless integration with LabVIEW, MATLAB, Python (PyVISA), or custom C/C++ control frameworks. The graphical user interface provides real-time monitoring of diode current, TEC temperature, photodiode feedback, and output power — all exportable as CSV or HDF5 files. Optional SDKs include DLL libraries for Windows and shared object (.so) libraries for Linux-based embedded controllers. Audit trails record every parameter change with user ID, timestamp, and pre-/post-value — configurable to meet ALCOA+ data integrity principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).
Applications
- High-resolution spectroscopy (cavity ring-down, photoacoustic, tunable diode absorption)
- Pump-probe ultrafast experiments requiring stable CW seeding sources
- Fiber-optic sensor interrogation (FBG, interferometric, distributed acoustic sensing)
- Optical coherence tomography (OCT) light source calibration and reference arm stabilization
- Nonlinear frequency conversion (SHG, SFG, DFG) in PPLN or MgO:PPLN waveguides
- Laser-assisted material processing (annealing, scribing, selective ablation) where wavelength-specific absorption is critical
- Quantum optics experiments requiring low-noise, polarization-defined pump fields
FAQ
Is this laser suitable for use in a Class 100 cleanroom environment?
Yes — the sealed, convection-cooled OEM module variant (1–20 W) is rated IP54 and contains no outgassing adhesives or lubricants. Full documentation of material compliance (ECSS-Q-ST-70-02C) is available upon request.
Can I synchronize the laser output with external TTL triggers?
All models support analog modulation (0–5 V) and digital TTL triggering (rising-edge, 5 ns jitter) for gated operation or pulse-on-demand sequencing.
What is the warranty and service support coverage?
Standard warranty is 24 months parts-and-labor. Extended service plans include on-site calibration traceable to NIST standards and preventive maintenance contracts with SLA-governed response times.
Do you provide wavelength calibration certificates?
Each unit ships with a factory-issued calibration certificate referencing NIST-traceable wavemeters (e.g., Bristol 621A or High-Finesse WS7), valid for 12 months under specified ambient conditions (23 ± 1 °C, <50% RH).
