Fujikura FSM-80S Core Alignment Fusion Splicer

The Fujikura FSM-80S is a single-fiber core alignment fusion splicer engineered for precise splicing across SM, MM, DS, and NZDS fiber types. It delivers consistently low splice loss - 0.02 dB (SM), 0.01 dB (MM), 0.04 dB (DS/NZDS) - with return loss ≥60 dB. The unit combines automated splicing modes with dual CMOS camera viewing (300× and 160× magnification) for accurate core alignment and real-time monitoring.

Technical Specifications

• Applicable Fibers: SM (ITU-T G.652, G.657); MM (G.651); DS (G.653); NZDS (G.655)


• Cladding Diameter: 80–150 µm


• Coating Diameter: 100–1000 µm


• Cleaved Length: 5–16 mm (Sheath Clamp A, B) or 5–13 mm (FH-60-250, FH-60-900)


• Splice Loss (Actual Average): 0.02 dB (SM), 0.01 dB (MM), 0.04 dB (DS), 0.04 dB (NZDS)


• Splice Time: 7 s (SM FAST), 12 s (SM AUTO), 15 s (AUTO)


• Return Loss: ≥60 dB


• Splicing Modes: 100 available


• Attenuation Splice Function: 0.1–15 dB (0.01 dB steps) for inline fixed attenuators


• Memory: Last 2000 splice results


• Magnification: 300× (X/Y separate) or 160× (X and Y simultaneous)


• Tension Test: 1.96–2.25 N


• Tube Heat Time: 13–15 s with FP-03 protection sleeve


• Protection Sleeve Lengths: 60 mm, 40 mm, micro series


• Electrode Life: 3000–5000 arc-discharges


• Power Supply: 100–240 V ac or 10–15 V dc (ADC-18); 14.8 V dc (BTR-09 battery)


• Battery Capacity: ~200 splice/heat cycles per BTR-09


• Operating Altitude: 0–5000 m


• Operating Temperature: −10 to +50 °C


• Humidity: 0–95% RH


• Wind Protection: Up to 15 m/s


• Tube Heater: Auto-start with 10 standard modes (expandable to 20; 30 total storable)


• Interface: USB 2.0 Mini-B for data and video

Key Features

• Dual CMOS cameras enable simultaneous fiber core viewing and accurate alignment


• Splice loss estimation accounts for core deformations and axis offset


• 100 programmable splicer modes support diverse fiber geometries


• Built-in auto-start tube heater with multiple heating modes


• Field-rated construction: operates −10 to +50 °C, survives 0–95% RH


• Compact form factor: 146(W) × 159(D) × 150(H) mm

Compatibility & Integration USB 2.0 Mini-B connection allows data export and video logging to external systems. Compatible with FP-03 protection sleeves and both Sheath Clamp (A, B) and FH-60 fiber holders.