Couplers, Splitters & Combiners
1×3 Single Mode Monolithic Fiber Optic Coupler/Splitter
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
Build & quote
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
System integration
Integration and compatibility
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.
- Optical interface and fiber
- 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 and loss budget
- 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.
Technical FAQ
Integration questions for 1×3 Single Mode Monolithic Fiber Optic Coupler/Splitter
Which fiber and connector does the 1×3 Single Mode Monolithic Fiber Optic Coupler/Splitter use?
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.
How should the 1×3 Single Mode Monolithic Fiber Optic Coupler/Splitter be included in an optical power budget?
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.
Need this configured?
Share your wavelength, fiber type, connector, power handling and control requirements and we will qualify the matching configuration and part number.
Related couplers, splitters & combiners
2×2 Double-Clad Fiber Couplers
Polarization Maintaining (PM) Fiber Optic Couplers/Splitters – Large Port Count up to 1x120
1x2/2x2 High Power Polarization Maintaining (PM) Fiber Optic Couplers/Splitters 30W- High Power 1x2, 2x2 Single Mode Fiber Optic Coupler/Splitter
- High Power 1x2, 2x2 Multimode Fiber Optic Coupler/Splitter
Switchable Fiber Optical Splitter/Coupler