Sumitomo Type-37 SM MM Fiber Core Alignment Fusion Splicer
The Sumitomo Type-37 SM MM Fiber Core Alignment Fusion Splicer is a field splicing tool for single mode and multimode optical fiber. It is identified by the Type-37 model reference and supports core alignment splicing. The splicer is designed for FTTx, metro, campus, access and customer premises networks. It provides stable arc control, automated functions and portable operation for installation and maintenance teams.
Single Mode and Multimode Support
Single mode fiber is used for long distance and high bandwidth networks. Multimode fiber is used for shorter distances such as data centers and campus backbones. The Type-37 supports both fiber types when correct splice programs are selected. This flexibility helps technicians work on different parts of a network with one splicer. The user should confirm the fiber type and select the appropriate mode before splicing.
Core Alignment Technology
The Type-37 uses core alignment to position fibers before arc fusion. Core alignment is important for single mode fiber because it helps match the light carrying region. This reduces splice loss and improves consistency. The system also supports automatic arc calibration to adapt to temperature, humidity and altitude. Stable arc energy helps produce reliable joints in field conditions.
Field Operation
The Type-37 is designed for portable use. Its compact body and carry case make it easy to transport between cabinets, poles, buildings and temporary sites. Battery operation supports work where mains power is not available. The display and menu system provide access to splice modes, heat modes and calibration. The rugged housing helps protect the unit during normal field use.
Applications
Typical applications include FTTH drops, distribution fibers, patch panels, pigtails, small closures, campus networks and metro extensions. The splicer can be used for new installation, maintenance and restoration. It supports standard single mode fiber, bend insensitive fiber and multimode fiber depending on selected programs.
Quality Control
The Type-37 provides splice loss estimates after each arc. This gives technicians immediate feedback and helps identify problems such as dirty fibers, poor cleaves or incorrect arc settings. Stored splice records can be reviewed for quality control. This is useful for contractors and network owners who need documentation of splice performance.
Maintenance
Regular cleaning of V grooves, clamps and objective lenses is important. Electrodes should be replaced when arc performance declines. The battery should be charged and stored according to guidance. The splicer should be kept in a dry, dust controlled environment. These steps help maintain stable splicing and extend service life.
Conclusion
The Sumitomo Type-37 SM MM Fiber Core Alignment Fusion Splicer is a practical tool for field fiber splicing. It combines single mode and multimode support, core alignment accuracy and portable operation. For FTTx, metro and campus networks, it provides a reliable solution for daily splicing tasks.




