Couplers, Splitters & Combiners
Our s double-clad 2×2 fiber coupler is made by fusing a large core fiber (200 µm) to the outer cladding layer of a double-clad fiber (single mode core surrounded by an inner cladding and an outer thick cladding). Light in the double-clad fiber’s (DCF) single-mode core propagates through the coupler with little loss. While the reflected lights are collected mainly by the thick outer cladding of the DCF and transferred to the 200 µm large core output fiber with ≥60% coupling efficiency. It forms a miniature fiber optical sensor head for various applications. We offer one of the industry’s most comprehensive selections of fused fiber couplers and splitters, designed for a wide range of application scenarios. Backed by over 25 years of production and engineering expertise, our products deliver industry-leading performance, reliability, and cost-effectiveness.
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.
Center Wavelength: 780 nm · Collect Fiber: 200 µm NA · Double Cladding: DCF 13 · Pigtail Style: 900um Jacket · Fiber Length: 0.25m · Connector Input: None · Connector Output: None · Connector Signal: None
Application context
Application guidance is tied to the configured wavelength, fiber interface and optical-budget fields for this family.
2×2 Double-Clad Fiber Couplers: Optical power distribution depends on preserving the optical budget through the complete path. The 780 nm, 1060 nm, 1310 nm, 1550 nm wavelength specification sets source and detector compatibility. The fiber/interface entry (200 µm NA) must match the connected components.
2×2 Double-Clad Fiber Couplers: Fiber sensing depends on preserving the optical budget through the complete path. The 780 nm, 1060 nm, 1310 nm, 1550 nm wavelength specification sets source and detector compatibility. The fiber/interface entry (200 µm NA) must match the connected components.
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System integration
Use these checks to connect 2×2 Double-Clad Fiber Couplers to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
Technical FAQ
Collect Fiber: 200 µm NA · Pigtail Style: 900um Jacket. 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.
Center Wavelength: 780 nm, 1060 nm, 1310 nm, 1550 nm. 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 2×2 Double-Clad Fiber Couplers with the closest available models in the Couplers, Splitters & Combiners family. Confirm option-dependent values on the final configuration before ordering.
| Selection parameter | 2×2 Double-Clad Fiber Couplers (current) | 2 x N Single Mode PLC Splitter | Compact Fiberoptic Coupler/Splitter |
|---|---|---|---|
| Wavelength range | 780 nm, 1060 nm, 1310 nm, 1550 nm | 1310/1550 | Confirm for this model |
| Optical performance | Confirm for this model | Confirm for this model | Confirm for this model |
| Fiber type | 900um Jacket | Ribbon | Confirm for this model |
| Connector / control | None, FC/PC, FC/APC | None, FC/APC, Special | Confirm for this model |
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