Multimode Coupler are fabricated from graded index fibers with core diameters of 50um or 62.5um. Standard multimode couplers are commonly used in short distance communications with LED sources operating at 1310nm or 850nm. Multimode couplers are wavelength independent over a broad range of wavelengths with uniform modal power distribution launch condition.
Applications | Features |
FDDI Communication system Accessing network Local area network | Low insertion loss High directivity Compact size High stability and reliability |
Performance specification
Coupling ratio | 50:50 | ||
Operating wavelength | nm | 850 | |
Grade | P | ||
Max excess loss | dB | 0.5 | |
Max insertion loss | dB | 3.8 | |
Max uniformity | dB | 0.6 | |
Min directivity | dB | 35 | |
Operating temperature | ℃ | -20～+75 | |
Storage temperature | ℃ | -40～+85 | |
Package dimension | mm | 90*20*10 | |
all specification does not include connector loss
