The Fujikura 70S+ is a core alignment fusion splicer engineered for precise splicing of single-mode, multimode, and specialty optical fibers. It delivers typical splice losses of 0.02 dB (SM), 0.01 dB (MM), and 0.04 dB (DS/NZDS) with return loss exceeding 60 dB, measured via cut-back methodology to ITU-T and IEC standards. The fixed V-groove alignment system accommodates cladding diameters from 80 µm to 150 µm and coating diameters up to 3,000 µm, with cleave lengths of 5 mm to 16 mm.
## Technical Specifications
**Applicable Fiber Types**
• Single-mode (SMF): G.652 & G.657
• Multimode (MMF): G.651.1
• Dispersion Shifted (DSF): G.653
• Cut-off Shifted (CS): G.654
• Non-Zero Dispersion Shifted (NZDS): G.655 & G.656
• Erbium-doped fiber
**Splice Loss Performance**
• Single-mode: 0.02 dB typical average
• Multimode: 0.01 dB typical average
• Dispersion Shifted: 0.04 dB typical average
• NZDS: 0.04 dB typical average
• Return Loss: >60 dB
**Splicing Time**
• ULTRA FAST mode: 6 seconds
• SM FAST mode: 7 seconds
• SM AUTO mode: 10 seconds
• AUTO mode: 15 seconds (SM fiber)
• Total splice process time: approximately 21 seconds
**Heating Performance**
• FP-03 sleeve (250 µm coating): 13 seconds typical
• FP3(40): 17 seconds typical
• Fujikura micro sleeves: 5–16 seconds
• Slim60mm (250 µm coating): 9 seconds typical
• FP-03 (900 µm coating): 14 seconds typical
• Automated clamshell heater: 13-second shrink time
**Fiber Dimensions**
• Cladding diameter: 80 µm to 150 µm
• Coating diameter: 100 µm to 3,000 µm
• Cleave length: 5 mm to 16 mm
**Imaging & Display**
• Magnification: 320X (single axis), 200X (dual axis)
• Display orientation: front or rear monitor with automated adjustment
• Fiber view: X or Y, or simultaneous X and Y
## Key Features
• 100 preset and user-programmable splicing modes
• Automatic arc calibration with real-time adjustment and memory-based mode selection
• Manual arc calibration available
• 2,000 splice results stored in internal memory
• Built-in tube heater with 30 heating modes and auto-start function
• Clamshell-design heater applies dual-sided thermal control
• Field-grade durability for shock, dust, and moisture exposure
## Typical Applications
Field splicing of terrestrial and specialty fiber links; laboratory fusion splicing operations; telecommunications infrastructure deployment; high-precision splicing where low loss and minimal return loss are critical.
## Compatibility & Integration
Dual-camera core axis alignment provides real-time splice loss estimation. Compatible with Fujikura protection sleeves including FP-03, FP3(40), and micro-sleeve designs across multiple coating diameters.
