Fujikura FSM-50S SM MM Fiber Core Alignment Fusion Splicer
The Fujikura FSM-50S is a core alignment fusion splicer designed for both single-mode (SM) and multi-mode (MM) optical fibers. It offers precise fiber alignment, automated splicing programs, and reliable splice results. Ideal for field and lab use, ensuring low-loss splices with its solid design and user-friendly interface.
- Model
- Fujikura FSM-50S
- Calibration
- Available on request
- Price
- $4,235
- Status
- In stock
- RFQ ref
- FSM-50S
This unit
The Fujikura FSM-50S is a core alignment fusion splicer engineered for precision splicing of single-mode, multi-mode, dispersion-shifted, and non-zero dispersion-shifted optical fibers. Operating across cladding diameters from 80 to 150 µm and coating diameters from 100 to 1000 µm, the unit delivers average splice losses of 0.02 dB for SM fiber and 0.01 dB for MM fiber, with return loss exceeding 60 dB. Splice completion occurs in approximately 9 seconds for SM fiber, with protection sleeve heating in typically 35 seconds.
Technical Specifications Applicable Fiber Types
Single-mode (SM)
ITU-T G.652
Multi-mode (MM)
ITU-T G.651
Dispersion Shifted (DS)
ITU-T G.653
Non-Zero Dispersion Shifted (NZDS)
ITU-T G.655 Fiber Parameters
Cladding Diameter: 80 to 150 µm
Coating Diameter: 100 to 1000 µm
Cleaved Length: 8 to 16 mm (coating ≤250 µm); 16 mm (coating 250–1000 µm); optional set-plate for 8 to 16 mm across full coating range Splice Performance
Average Splice Loss: 0.02 dB (SM), 0.01 dB (MM), 0.04 dB (DS), 0.04 dB (NZDS)
Return Loss: >60 dB
Splice Time: ~9 seconds (SM fiber)
Attenuation Splice Function: 0.1 to 15 dB in 0.1 dB steps Display & Optics
Dual CCD cameras with 5.6-inch TFT color LCD monitor
Magnification: 295× (single view), 147× (dual view)
Simultaneous X/Y fiber display capability Operational Modes & Memory
40 user programmable modes; up to 60 reference modes
Automatic fiber type identification
Splice data storage: last 2000 results Heater & Protection
Protection sleeve heating: ~35 seconds (FP-03 sleeve)
Compatible with standard and micro splice protectors (60 mm, 40 mm, micro series) Environmental
Operating Temperature: −10°C to +50°C
Storage Temperature: −40°C to +80°C
Automatic altitude compensation up to 3500 m
Fujikura FSM-50S — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Fujikura FSM-50S. Calibration covers arc calibration (arc power and duration), V-groove alignment verification, cleave angle detection accuracy, splice loss estimation accuracy, and heating oven temperature calibration. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Fujikura FSM-50S faults: electrode wear, V-groove contamination or chipping, motor alignment drift, high arc voltage errors. Common repairs include electrode replacement (typically every 2,000-3,000 arcs), V-groove cleaning or replacement, motor and actuator alignment, and camera/CCD replacement. Fujikura FSM and Sumitomo Type series parts are stocked.
Fujikura FSM-50S price
This Fujikura FSM-50S is listed at $4,235. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Fujikura FSM-50S calibration cost
NIST-traceable calibration for the Fujikura FSM-50S is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers arc calibration (arc power and duration), V-groove alignment verification, cleave angle detection accuracy, splice loss estimation accuracy, and heating oven temperature calibration. Turnaround is 1 to 3 business days after receipt. See full calibration details →
