Unbalanced optical splitter is an optical passive device whose core function is to distribute the input optical signal to multiple output channels in unequal proportions. The optical power distribution ratio at different output ends can be customized according to actual needs.
Unbalanced Optical Splitter Working Principle
Waveguide Interference Distribution: Unbalanced optical splitter is based on planar waveguide circuit (PLC) technology, a precisely designed waveguide structure causes input optical signals to interfere within the splitting region, achieving differentiated optical power distribution for different output ports.
Asymmetric Splitting Ratio: Unbalanced optical splitter upports any customized splitting ratio (e.g., 95:5, 90:10, 85:15, 80:20, 75:25, 70:30, 65:35, 60:40, 55:45, etc.), significantly different from equal-split splitters (which provide equal power output across all channels, e.g., 1×2 50:50, 1×4 25:25:25:25, 1×8 12.5:12.5…:12.5, etc).
Unbalanced Optical Splitter Key Application
Fiber-to-the-Home (FTTH): unbalanced fiber splitter can differentiate optical signal distribution based on user distance or bandwidth requirements, for example, allocating higher power to remote users to compensate for transmission losses.
Security monitoring systems: unbalanced fiber splitter can allocate more optical power to critical cameras farther from the equipment room to ensure stable video streaming; lower power is allocated to near-end nodes to avoid overload.
Fiber-optic sensor networks: unbalanced fiber splitter can allocate optical power based on the importance of monitoring points, for example, allocating 80% optical power to stress points on bridges to improve data accuracy.
Unbalanced Optical Splitter Technical Advantages
Flexible Adaptation to Complex Networks: Unbalanced fiber splitter can optimizes resource allocation within FTTx multi-level splitting. For example, the first-level splitter distributes signals to different areas in a 90:10 ratio, while the second-level splitter further segments the signal based on user density.
High Stability and Wavelength Compatibility: unbalanced fiber splitter operating wavelengths cover 1260-1650nm, making it suitable for a variety of optical communication scenarios.
Conclusion
Unbalanced PLC splitter solves the problem of uneven network resource allocation through customizable splitting ratios, and it is a key technology for improving the efficiency and reliability of fiber optic systems.
