The Sumitomo 37 MicroCore is a fusion splicer engineered for high-density optical fiber applications requiring low-loss splices in constrained cable profiles. Core-alignment technology combined with cladding and attenuation control methods delivers consistent splice performance across diverse fiber types. The system accommodates reduced cladding diameters (80 µm to 150 µm), enabling higher fiber density while maintaining exceptional splice loss characteristics—typically 0.02 dB for single-mode fiber and 0.01 dB for multimode fiber.
Technical Specifications
Splicing Performance
• Splice cycle time: 11 seconds (Quick Mode), 15 seconds (Standard Mode)
• Average splice loss (SMF): 0.02 dB
• Average splice loss (MMF): 0.01 dB
• Average splice loss (NZ-DSF): 0.03 dB
• Cleave length: 9 mm to 16 mm
• Splice data storage: Up to 2400 splices with 18-character descriptions
Fiber Compatibility
• Fiber types: Single Mode Fiber (SMF), Multimode Fiber (MMF), Dispersion Shifted Fiber (DSF), Non-Zero Dispersion-Shifted Fiber (NZ-DSF), C-band Fiber (CSF), Er-doped Fiber
• Material: Silica glass
• Cladding diameter: 80 µm to 150 µm
• Coating diameter: 250 µm to 900 µm
– Key Features
• 340x fiber magnification with V-groove illumination for precise core alignment
• HDCM (High-resolution Direct Core Monitoring) system for splice loss estimation
• APDS (Auto Fiber Profiling Check and Detection System) prevents fiber type mis-selection
• Automatic arc test optimizes arc settings for varying fiber types and environmental conditions
• Optional tension test: 1.96 N (200 gf) or 4.41 N (450 gf)
• 5.6-inch TFT color LCD monitor with on-screen operation instructions
Physical & Environmental
• Dimensions: 150 mm W × 150 mm D × 176 mm H
• Weight: Approximately 4 kg
• Operating temperature: -10°C to +50°C
• Operating humidity: Up to 95% RH (non-condensing)
• Altitude: 0 to 4000 m
• Wind protection: Up to 15 m/s
• Power: 100–240 V AC, 50/60 Hz via PS-65 power supply; optional BU-65 DC battery (approximately 40 splice cycles per charge)
– Typical Applications
Data centers, advanced communication networks, and deployments requiring efficient spatial utilization with high-performance optical connectivity.
– Compatibility & Integration
Supports single-fiber splicing across all major modern fiber types. Compatible with standard cleaving practices (9–16 mm cleave length) and integrates with external tension testing apparatus.
















