Specialty Single-Mode Fiber
Applications
- Low loss connections, Optical sensors in harsh environments such as oil wells, Single-mode fiber usable in the 850 nm band
Features
- 01
Thermally-diffused Expanded Core(TEC) technology

This single mode optical fiber expands its core (mode field diameter) when heated during fusion splicing. It enables low loss connections with different optical fibers and optical devices.
- 02
Heat Resistance

This is a single mode optical fiber with low loss fluctuation (≤0.01 dB/km 7 days) under harsh conditions.
- 03
Transmission in the 850 nm band

This is a single mode optical fiber with a communication wavelength band of 850 nm.
Customer Benefits
Fujikura offers products that satisfy special requirements that standard single-mode fibers do not fully meet, including Thermally-diffused Expanded Core (TEC) technology, heat-resistant fibers, and transmission in the 850 nm band. These products help enhance customers' product development and improve quality.
Lineup
You can choose special single mode fibers that match your desired features.
| TEC SM Fiber | TEC13-15-U25HT-M4 (TEC PANDA Fiber also available) |
|---|---|
| Heat-Resistant Fiber | SR15-9/125-ACL |
| 850 nm SM Fiber | SM85-SM-U25D |
| RCHA85-SM-U17D |
Product Catalog
You can find the product specifications here. Please download them using the button below.



