3 differences between optical couplers and splitters and directional couplers
Optical couplers divide light asymmetrically (e.g., 90:10 ratio) with <0.2dB excess loss, while splitters distribute evenly (50:50) but introduce 3dB loss per output. Directional couplers isolate reflected signals (40dB directivity) and operate at 1310/1550nm wavelengths, unlike broadband splitters covering 1260–1650nm. Fusion-spliced couplers handle 10W power, whereas PLC splitters fail above 1W. How They Split Light […]
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