SC APC Fiber Optic 1*2 FBT Coupler 15%:85% Blue Red Color for WDM T1550 R1310/1490 FWDM
Single mode Dual Window Coupler 1×2, 2×2 offer very low insertion loss, low polarization dependence and excellent environmental stability. Accurate coupling ratio from 50/50 to 1/99, fiber type 250um bare fiber, 3mm and 900um loose tube fiber are available with very tight uniformity in a wide wavelength range of both 1310 nm and 1550 nm windows. Single mode dual window coupler find extensive application to perform power splitting and monitoring functions in all kinds of optical communication systems.
Features
Low insertion loss
High isolation
High stability and reliability
Application
Fiber laser
Fiber amplifier
Testing equipment
1×2 FBT splitter is with 1fiber input pigtail and 2 fibers outputs, and the device to connector both pigtails are not chip (for PLC Splitter) but welding machine to make them fused together, and outside the joint there is a stainless steel tube to protect it.
Specification
1*2 FBT Coupler Coupling Ratio Insertion Loss Conversion Chart
| Coupling Ratio | Insertion Loss | |
| Premium | A Grade | |
| 40/60 | 4.7/2.7 | 5.0/2.9 |
| 30/70 | 6.0/1.9 | 6.4/2.1 |
| 20/80 | 7.9/1.2 | 8.5/1.4 |
| 10/90 | 11.3/0.5 | 12.0/0.8 |
| 5/95 | 14.0/0.35 | 14.6/0.43 |
| 1/99 | 22.5/0.25 | 23.0/0.35 |
| Coupling Ratio(%) | 1~50 | |
| Directivity (dB) | >55 | |
| Operating Temperature (℃) | -20 – + 85 | |
| Storage Temperature (℃) | -40 – + 85 | |
| Fiber Type | Corning Single mode SMF-28, DS Fiber, or flex core | |
| Fiber Pigtail Length (m) | 1 | |
| Port Configuration | 1×2 or 2×2 | |
| Package Dimension | Package D,E,F,G | |
NOTE:
For device with connectors, IL is 0.3dB higher, RL is 5dB lower, ER is 2dB lower. The default connector key is aligned to slow axis.
Package information:
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