ZOLIX FLG-Series Fiber Coupling Optics Assembly

Overview

The ZOLIX FLG-Series Fiber Coupling Optics Assembly is a precision-engineered optical interface solution designed for high-efficiency coupling between broadband lamp-based tunable monochromatic light sources (e.g., TLS2/TLS3 series) and downstream analytical instrumentation—including spectrometers, photodetectors, and custom optical setups. Built upon fundamental principles of Gaussian beam propagation and NA-matched fiber-optic coupling, the FLG system ensures minimal insertion loss and spatial mode fidelity across the ultraviolet–near-infrared spectrum (200–1100 nm). Each assembly integrates UV-grade fused silica optics with rigorous surface quality (λ/10 @ 633 nm) and anti-reflection coatings optimized for broad spectral coverage. The modular architecture supports seamless integration with ZOLIX’s “SpectraMaster” and “Imaging SpectraMaster” spectrograph platforms via standardized SMA905 interfaces, enabling reproducible alignment in both R&D laboratories and regulated QC environments.

Key Features

• FLG-SMA905-F35 focusing assembly: 35 mm effective focal length, <1 mm focused spot size at 1 mm core diameter quartz fiber output—validated under collimated 555 nm illumination
• BFC-447 spectrometer–fiber adapter: Precision-machined XYZ-adjustable mount supporting Ø3 mm cylindrical and SMA905 fiber terminations; enables sub-10 µm lateral positioning resolution and ±0.1 mm axial focus tuning
• 74-UV collimating lens: UV fused silica substrate with broadband AR coating (200–1100 nm), 5 mm clear aperture, optimized for low wavefront distortion (<λ/8 RMS)
• Fiber bundle compatibility: FLG-401 and FLG-402 variants feature 19-fiber arrays (200 µm core each), NA 0.22, 25° full divergence angle, and hermetically sealed stainless steel ferrules
• Modular scalability: Designed to interoperate with TLS-series tunable monochromators, IS-series integrating spheres (e.g., IS-200-50, >98% spatial uniformity at 555 nm), and off-axis parabolic collimation modules

Sample Compatibility & Compliance

The FLG-Series is compatible with standard multimode quartz fibers (core diameters 50–1000 µm) and custom fiber bundles meeting IEC 61754-16 (SMA905) and IEC 61300-2-2 (mechanical durability) specifications. All optical components comply with ISO 10110-7 surface quality standards and are certified for use in Class 1 laser product safety configurations per IEC 60825-1. While not inherently GLP/GMP-certified, the mechanical repeatability (±0.5 µm positional stability after thermal cycling from 15–35°C) and traceable alignment methodology support audit-ready documentation for regulated applications under ISO/IEC 17025 or FDA 21 CFR Part 11–aligned workflows.

Software & Data Management

The FLG-Series operates as a hardware-level optical interface and does not incorporate embedded firmware or native software control. However, its deterministic coupling geometry enables stable signal-to-noise ratios essential for quantitative spectral acquisition when paired with ZOLIX’s SpectraMaster acquisition software (v5.2+), which supports automated wavelength calibration traceable to NIST SRM 2035 and includes built-in dark-current subtraction, pixel binning, and spectral radiance normalization routines. Raw intensity data export conforms to ASTM E131-22 spectral data interchange format (.spc) and HDF5 v1.12.2 for long-term archival compliance.

Applications

• Monochromator–spectrometer coupling for UV-Vis-NIR absorbance, reflectance, and fluorescence quantum yield measurements
• Integrating sphere illumination systems requiring spatially uniform irradiance (>98% uniformity across 200 mm exit port)
• Photocatalysis reactor illumination with controlled spectral bandwidth and power density (0.1–50 mW/cm² range achievable with TLS3-X150A source)
• Calibration source delivery for remote sensor validation (e.g., UAV-mounted hyperspectral imagers)
• Time-resolved photoluminescence excitation (PLE) mapping using pulsed xenon lamp sources synchronized via TTL triggers

FAQ

What is the maximum power handling capacity of the FLG-SMA905-F35 assembly?
The assembly is rated for continuous-wave broadband irradiance up to 2 W total optical power at the input face, assuming proper heat sinking of the fiber termination and ambient temperature ≤30°C.
Can the BFC-447 adapter be used with non-ZOLIX spectrometers?
Yes—provided the spectrometer features a standard Ø3 mm circular slit or SMA905-compatible input port and mechanical mounting tolerance ≤±0.15 mm.
Is UV fused silica used throughout the entire optical path?
Yes: all transmissive elements—including the 74-UV collimator and FLG-SMA905-F35 focusing lens—utilize synthetic UV fused silica (OH⁻ content 90% from 190 nm onward.
Does ZOLIX provide alignment verification reports for individual FLG units?
Upon request, factory alignment certification includes far-field intensity profile measurements (using calibrated CCD profiler), focal spot size verification (knife-edge scan), and NA matching validation against specified fiber parameters.
Are custom fiber bundle configurations available beyond FLG-401/402?
Yes—custom designs including graded-index fibers, polarization-maintaining bundles, or hybrid silica/sapphire constructions are supported under NRE agreement with documented optical performance specifications.