Single Mode Three Windows Wavelength Independent Couplers
Low loss
Low polarization dependence
Environmentally stable
Optic communication system
LAN
CATV
Fiber optic sensor
Fiber to the Home
Configuration
N× 4

N=1, 2, 4
N× 8

N=1, 2, 8
N× 16

N=1, 2, 16
N× 32

N=1, 2, 32
Grade A
Operating Wavelength (nm)1310 1490 1550
Bandwidth (nm)± 40 ± 20 ± 40
Max. Insertion Loss (dB)7.35 11.30 15.15 18.80
Uniformity (dB)≤ 1.6 ≤ 2.4 ≤ 3.2 ≤ 4.0
Polarization Dependent Loss (dB)≤ 0.2 ≤ 0.3 ≤ 0.4 ≤ 0.5
Thermal Stability (dB)≤ 0.2 ≤ 0.3 ≤ 0.4 ≤ 0.5
Return Loss (dB)≥ 50
Directivity (dB)≥ 60