As one of important passive components, Fused Fiber Splitters(FBT) and Planar lightwave Circuit Splitters(PLC) are widely used in FTTx networks, 
FBT splitters has single window, duel window, triple window working at 1310, 1490 or 1550 with coupling ratio at custom requirement. 
PLC type has compact size and suits for density application, it is compatible with 3 wavelength(1310/1490/1550) 

Features: 
Various coupling ratio 
Single mode and multi mode available 
Low insertion loss, high echo loss, high wavelength isolation 
Selects high quality optical fiber patch cords, adapters 
Environmental stable 
Industry standard and custom housing available 
Variety of connectors available 
1x2, 1x4 and 1x n customized couplers configuration available 

Applications: 
Optical communication system 
System and signal monitoring 
CATV Systems & Fiber Sensors 
Fiber to the home (FTTH) 
Network redundancy 
Laser splitting