1x4, 1x8，pm filter coupler module
specifications
parameters unit values
type 1x4 1x8
center wavelength nm
operating wavelength range nm ±30
max. insertion loss db 7.5 8.0 11.0 11.5
min.wdl db 0.5
uniformity db 0.8 1.0
min. extinction ratio both of axis working db 20 17
fast axis blocked db 22 22
min. return loss db 50
directivity db 50 45
temperature dependent loss db/℃ 0.006 0.008
max. optical power(cw) mw 300
max. tensile load n 5
fiber type pm panda fiber
operating temperature ℃ -5~+70
storage temperature ℃ -40~+85
package dimensions mm 160x140x10 160x160x10
features
low insertion loss
high return loss
high extinction ratio
high reliability
applications
communication systems
test instrumentations
fiber sensors
research
for device with connector, il is 0.3db higher, rl is 5dblower, er is 2db lower. the default connector keyis aligned to slow axis.
保偏耦合器，耦合器