1x2(2x2) fused pm fiber standard coupler
features
low excess loss & low insertion loss
high extinction ratio
high stability and reliability
application
optical amplifier,
power monitoring
coherent communication
fiber gyroscope
fiber sensor
specification
parameter p grade a grade p grade a grade p grade agrade
central wavelength (nm) ,1064 780,850
bandwidth (nm) ±20
typ. excess loss (db) 0.2 0.3 0.6 0.8 0.6 0.8
max.excess loss (db) ≤0.4 ≤0.6 ≤0.8 ≤1.0 ≤0.8 ≤1.0
er (db) ≥20 ≥17 ≥18 ≥16 ≥18 ≥16
directivity (db) ≥55
operating temperature(℃) -40 ~ +85
storage temperature (℃) -40 ~ +85
for device with connector, il is 0.3db higher, rl is 5dblower, er is 2db lower. the default connector key is aligned toslow axis. package information
configuration 1x2 or 2x2
fiber length 0.8m, others on request
fiber type panda fiber
pigtail type 250μm bare fiber 900μm loose tube 900μm/2mm/3mmloose tube
dimensions(mm) φ3.0×54 φ3.0×70 90x16x9
保偏耦合器，耦合器