Couplers, Splitters & Combiners
The FCTM series 1×3 Monolithic Single Mode Coupler utilizes Our fused biconical taper technology and compact packaging to deliver exceptional optical performance. With superior uniformity, low excess loss, and minimal polarization sensitivity — achieved through precision automated fabrication — this device is ideal for high-performance light splitting or combining across a broad wavelength range. Standard operating wavelengths include 1310 nm, 1490 nm, and 1550 nm, with dual- and triple-band configurations also available. The coupler is housed in a compact 3 mm diameter, 54 mm long tube, making it well-suited for space-constrained integration.
Configuration options
Configure the options below and add your exact build to the enquiry — we confirm the part number and availability.
We confirm the exact part number for your configuration on enquiry.
Type: S · Wavelength: 1310 · Grade: A · Coupling Ratio: 30/30/30 · Fiber Type: SMF-28 · Fiber Cover: 900um tube · Connector: None
Application context
Application guidance is tied to the configured wavelength, fiber interface and optical-budget fields for this family.
1×3 Single Mode Monolithic Fiber Optic Coupler/Splitter: Optical power distribution depends on preserving the optical budget through the complete path. The 1310, 1480, 1550, 1310/1550, 1310/1480/1550 wavelength specification sets source and detector compatibility. The fiber/interface entry (SMF-28) must match the connected components.
1×3 Single Mode Monolithic Fiber Optic Coupler/Splitter: Fiber sensing depends on preserving the optical budget through the complete path. The 1310, 1480, 1550, 1310/1550, 1310/1480/1550 wavelength specification sets source and detector compatibility. The fiber/interface entry (SMF-28) must match the connected components.
System integration
Use these checks to connect 1×3 Single Mode Monolithic Fiber Optic Coupler/Splitter to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Fiber Type: SMF-28 · Fiber Cover: 900um tube, Bare fiber. Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
Wavelength: 1310, 1480, 1550, 1310/1550, 1310/1480/1550. Check the Couplers, Splitters & Combiners passband, insertion loss, return loss and power handling at the actual source wavelength; a nominal telecom-band label is not a substitute for the configured range.
Share your wavelength, fiber type, connector, power handling and control requirements and we will qualify the matching configuration and part number.
Model selection
Compare 1×3 Single Mode Monolithic Fiber Optic Coupler/Splitter with the closest available models in the Couplers, Splitters & Combiners family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | 1×3 Single Mode Monolithic Fiber Optic Coupler/Splitter (current) | 1×3 80µm Polarization Maintaining (PM) Fiber Optic Couplers/Splitters | 1×3, 1×4 Polarization Maintaining (PM) Fiber Optic Couplers/Splitters – Box |
|---|---|---|---|
| Wavelength range | 1310, 1480, 1550, 1310/1550, 1310/1480/1550 | Confirm for this model | Confirm for this model |
| Optical performance | Confirm for this model | Confirm for this model | Confirm for this model |
| Fiber type | SMF-28 | Confirm for this model | Confirm for this model |
| Connector / control | None, FC/PC, FC/APC, Special | Confirm for this model | Confirm for this model |
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