
1×2 Single-Mode Fiber Optic Coupler SMC-780-10-FA
SMC-780-10-FADesign Tools
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The LBTEK 10:90 single-mode fiber coupler can distribute the optical energy transmitted through one fiber to two output fibers at a coupling ratio of 10:90. Depending on actual customer requirements, it can be applied in various fields such as optical path monitoring and beam splitting transmission. The coupler features precise splitting ratio, low additional loss, as well as high return loss and operational stability. Each LBTEK coupler undergoes rigorous testing before leaving the factory and comes with a test datasheet for customer reference.
- Multiple Wavelengths Available within the Range of 405-2000 nm
- Split Fatio 10:90
- FC/APC or FC/UPC Connector
- Single-Ended Fiber 1 Meter

| Operating Wavelength | 780±15 nm |
| Connector Type | FC/APC |
| Operating Temperature | -40~+85 °C |
| Splitting ratio | 10:90 |
| Fiber Type | 780-HP 900µm Loose Hytrel® Tube |
| Fiber length | 1 m |
| Storage Temperature | -40~+85 °C |
| Power Handling | 1000 mW (300 mW with connector) |
| Maximum Pulling Force | 5 N |
| Polarization Dependent Loss (PDL) | ≤ 0.2 dB |
| Insertion Loss | ≤ 0.9 dB (Port 1) ≤ 11.8 dB (Port 2) |
| Return Loss | ≥ 55 dB |
| Port Configuration | 1×2 |
| Package Dimensions | Ø3.0 mm×60 mm |
| Insertion Loss (Typical) | ≤ 0.3 dB |
| Insertion Loss (Max) | ≤ 1.0 dB |






