Thorlabs SPL-F Fiber Optic Termination and Cleaning Kit

Overview

The Thorlabs SPL-F Fiber Optic Termination and Cleaning Kit is a comprehensive, laboratory-grade solution engineered for precision fiber optic assembly, inspection, and maintenance in R&D, manufacturing, and telecom test environments. This integrated kit supports end-to-end workflow integrity—from buffer stripping and cleaving to connectorization, inspection, and contamination control—ensuring low-loss, high-reliability optical interfaces compliant with industry standards including IEC 61300-3-35 (fiber end-face inspection), Telcordia GR-326-CORE, and ISO/IEC 11801. At its core, the kit leverages proven mechanical termination principles (e.g., epoxy-free crimping and index-matching gel coupling) and non-destructive cleaning methodologies to minimize insertion loss, back reflection, and long-term degradation of single-mode (SMF-28® compatible) and multimode (OM3/OM4) fiber links.

Key Features

• FS200 Fiber Inspection Microscope with 200× magnification, high-intensity LED illumination, and optional off-axis illumination for enhanced detection of scratches, pits, and contamination on FC, SC, ST, APC, LC, and SMA ferrule end-faces
• BFTU Bare Fiber Termination Units enabling rapid, reusable mechanical termination of stripped and cleaved fibers (Ø125 µm cladding, up to Ø0.7 mm bare fiber; compatible with Ø4 mm jacketed cables)
• Pre-loaded, multi-use index-matching connectors (TS125 for SMF, TS128 for MMF) delivering ≤0.2 dB average insertion loss and featuring fused silica viewing windows for real-time alignment verification
• Dedicated fiber preparation tools: AFS900 adjustable stripper for precise removal of 900 µm tight/loose buffers and 250 µm coatings; FTS3 dual-diameter split-tube cutter (Ø3 mm / Ø3.8 mm); XL411 suspended cleaver achieving repeatable 0.5° angular cleaves with >3000 cuts per blade
• Kevlar-specific T865 shears with hardened carbon steel serrated blades—designed exclusively for aramid yarn cutting to preserve edge integrity and avoid fiber damage
• FCS3 pressurized cleaning canister and MCC25 lint-free cleaning swabs, supplied in CKF cleaning kits, validated for residue-free removal of hydrocarbons, dust, and particulates per IEC 61300-2-4

Sample Compatibility & Compliance

The SPL-F kit accommodates standard telecom and datacom fiber geometries, including ITU-T G.652.D single-mode fiber (cladding Ø125 ±0.7 µm, mode field diameter 10.4 ±0.8 µm @1550 nm) and OM3/OM4 multimode fiber (core Ø50 µm, cladding Ø125 µm). All included connectors (FC/PC, FC/APC, LC, ST, SMA905) meet IEC 61754-xx interface specifications and are rated for ≥500 mating cycles. Crimp tools (CT042) and ferrules (ceramic, Ø125 µm or Ø80 µm bore) comply with GR-326-CORE mechanical durability requirements. The FS200 microscope’s illumination system conforms to IEC 61300-3-35 luminance thresholds for automated end-face analysis systems.

Software & Data Management

While the SPL-F kit is hardware-centric and does not include embedded firmware or proprietary software, it is fully compatible with third-party fiber inspection platforms (e.g., VIAVI SmartClass Fiber, EXFO FTB-1/FTB-2) via standardized USB or HDMI video output from the FS200 microscope. Image capture, annotation, and pass/fail reporting may be integrated into enterprise quality management systems (QMS) supporting ISO 9001:2015 and FDA 21 CFR Part 11 audit trails when paired with validated digital microscopy software. All consumables—including G608N refractive index matching gel and FTS3B replacement blades—are serialized and traceable to lot-level documentation for GLP/GMP traceability.

Applications

• Research laboratories requiring rapid prototyping of fiber-coupled laser systems, interferometers, and photonic integrated circuits
• Production floor deployment for pre-shipment verification of patch cord assemblies, transceiver pigtails, and active optical cables
• Maintenance of fiber-fed instrumentation (e.g., OCT systems, spectroscopy sources, quantum optics setups) where end-face contamination directly impacts signal-to-noise ratio
• Calibration labs performing IL/RL validation per IEC 61280-2-9 and TIA-526-14-B
• Educational institutions teaching fiber optics fundamentals, connectorization techniques, and failure mode analysis

FAQ

Can the BFTU terminate both single-mode and multimode fibers?
Yes—the BFTU accepts standard Ø125 µm cladding fibers regardless of core type; however, optimal performance requires matching ferrule geometry (e.g., Ø125.5 µm ceramic for FC variants) and proper cleave angle control.
Is the FS200 microscope compatible with automated inspection software?
Yes—its analog video output supports integration with machine vision systems configured for IEC 61300-3-35 defect classification algorithms.
What is the shelf life of G608N refractive index matching gel?
Unopened, G608N maintains specification compliance for 24 months when stored at 15–25 °C in sealed containers; post-opening stability is 6 months under nitrogen purge.
Does the XL411 cleaver require calibration?
No—its monolithic aluminum housing and kinematic blade carriage eliminate drift; periodic verification against a reference cleave standard (e.g., NIST-traceable cleave gauge) is recommended every 500 cuts.
Are CT042 crimp tools certified to MIL-STD-790?
While not formally MIL-STD-790 certified, CT042 tools meet equivalent mechanical force tolerances (±5% crimp pressure) and have been qualified per internal Thorlabs reliability testing (1000-cycle crimp fatigue, 0.1 mm radial runout).