Fiber Couplers/Splitters/Combiners
We offer a full line of fiber optic couplers and splitters supporting SM, MM, PM, large core, and double-clad fibers across 300–2000 nm, with power handling up to 100 W and operating temperatures up to 300°C. Three fabrication methods are employed: fusion, micro-optics, and planar lightwave circuit (PLC), each optimized for specific performance and cost requirements.
- Fusion couplers, made by melting a section of twisted fibers, offer the lowest insertion loss (~0.3 dB) and highest power handling, with a limited wavelength bandwidth of ±40 nm and polarization extinction ratio below 23 dB.
- Micro-optic couplers, built by coupling two lensed fiber collimators with an optical element in between, provide ultra-broad bandwidth (±200 nm), high polarization extinction ratio (>30 dB), excellent thermal stability, and allow integration of filters and polarizers, albeit at higher cost.
- PLC couplers, fabricated through photolithography and etching, are ideal for high fiber counts, offering compact size, broad bandwidth (±200 nm), and low cost, though with higher coupling loss and lower power handling due to epoxy-based light paths. PLCs typically feature fixed, uniform splitting ratios, with custom ratios achievable at significantly higher setup costs.
Note: while fiber couplers efficiently split light into multiple outputs, they are not suitable for combining multiple beams due to the inherent 50% loss per combining stage; for low-loss beam combining, refer to our fiber combiners utilizing wavelength, polarization, or beam size differences.
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SM Fiber Couplers/Splitters — Channels Up to 128 (22)
$61+
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PM Fiber Couplers/Splitters — PER Up to 29 dB (12)
$255+
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MM Large Core Fiber Couplers — Core Up to 1 mm (9)
$180+
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Double Cladding Fiber Fused Coupler/Splitter (2)
High back reflection collection efficiency using large core fiber, Sensors, LiDAR
$880+
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High Temperature Fiber Coupler — (−60 to 300 °C) (1)
450–2400 nm, 5 W
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Variable Fiber Optical Splitters (6)
Electrically Variable Coupler Ratio, High Speed, All Wavelengths, SM, PM, MM
$1071+
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Fiber Optical Combiners (450–2400 nm, PM, Large Core) (6)
Combine/Split beams of different polarization or core size
$385+
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1–5% Coupler Integrated with Tap Detector
All Fiber Types, 300–2400 nm, Up to 200 W
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Polarization Beam Splitter (PBS) Non-Epoxy Bonding (1)
350–2500 nm, Up to 10 W optical power
$250+
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Wideband Multimode Optical Circulator