Dual Window Coupler (DWC) 

Key Features 
? Low excess loss 
? Low PDL 
? Dual operating window 
? High stability and reliability 
Applications 
? Optical communication systems 
? CATV 
? FTTH 
Compliance 
·Telcordia GR1209 
·Telcordia GR1221 

Specifications 
               Type 
Parameter  Dual Window Coupler (DWC) 
Grade  P  A  P  A 
Operating wavelength (nm)  1310 and 1550 
Operating bandwidth (nm)  ±40  ±80 
Typical excess loss (dB)  0.07  0.1  0.07  0.1 
Insertion Loss(dB)  1/99  18.6~21.6/≤0.25  17.95~22.25/≤0.35  18.35~21.85/≤0.25  17.60~22.55/≤0.35 
PDL(dB)  ≤0.15  ≤0.20  ≤0.15  ≤0.20 
Directivity( dB)  ≥55 
Operating temperature(℃)  -40  ~  +85 
*The above specification is without connector 
**Other specifications can be made on customer request. 

Package Information 
Configuration  1×2 or 2×2 
Fiber lead length  1 meter, others on request 
Fiber type  250μm bare fiber  900μm loose tube  900μm/2mm/3mm loose tube 
Dimensions (Ф×L)  Φ3.0mm×45mm  Φ3.0mm×54mm  90mm×20mm×10mm 
*Other package dimensions can be made on customer request. 


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