The unique bandwidth extension technique (asymmetric craft) is adopted for the tri-windows coupler to change the characteristic of the wavelength and make tri-windows at 1310/1490/1550nm wavelength meet the precision requirements of the coupling ratio. This unit specially applies for the low-cost solution of “3 in 1 network” and tri-wavelength bi-direction transmission with a single fiber in FTTx network.
Features
Low PDL
Low Excess Loss
Good Directivity
Good environmental Stability
Tri-operating windows
Applications
Optical Fiber Communication Systems
Optical Fiber CATV
Passive Optical Network (PON)
FTTx
Specifications
Type | Standard Tri-window Optical Coupler | |||
Central Wavelength/Bandwidth(nm) | 1310±40, 1490±10, 1550±40 | |||
Coupling Ratio (%) | 1~50 | |||
Typical Excess Loss(dB) | 0.15 | |||
Typical Insertion Loss(dB) | 3.6 | |||
PDL(dB) | 0.10 | |||
Directivity(dB) | 55 | |||
Temperature Coefficient(dB/℃) | 0.002 | |||
Operating Temperature(℃) | -40~+70 | |||
Storage Temperature(℃) | -40~+85 | |||
Max Operating Power(mw) | 300 | |||
Max Tensile Strength(N) | 5 | |||
Max Insertion Loss(dB) | 1*4 | 1*8 | 1*16 | 1*32 |
7.0 | 10 | 13.5 | 17.0 | |
Insertion Loss Uniformity(dB) | 1*4 | 1*8 | 1*16 | 1*32 |
1.6 | 1.8 | 2.4 | 3.0 | |
Industry Standard | Telcordia GR-1221-CORE | |||
