Dual Window Coupler (DWC)
Applications; Xxxxx communication systems test 2. CATV 3. FTTH

Specifications:
Parameter
Grade; U/P/A
Operating wavelength (nm); 1310 and 1550
Operating bandwidth (nm); +40&-40
Typical excess loss (dB); 0.07/0.07/0.1
Insertion loss (dB);
50/50; ??3.4/??3.6/??3.8
40/60; ??4.5/2.6, ??4.7/2.7, ??4.9/2.9
30/70; ??5.7/1.9, ??6.0/2.0, ??6.3/2.1
20/80; ??7.6/1.2, ??7.9/1.2, ??8.4/1.4
10/90; ??11.0/0.65, ??11.3/0.70, ??12.0/0.8
5/95; ??14.2/0.4, ??14.6/0.45, ??15.5/0.5
2/98; ??18.4/0.25, ??18.8/0.3, ??19.5/0.4
1/99; ??21.5/0.2, ??22.5/0.25, ??23.5/0.35
PDL (dB); ??0.1/??0.15/??0.2
Directivity (dB); ?? 55
Operating temperature;
-40 ~ +85
*The above specification is without connector.

Package; 3.0*54 etc.
Connector; FC/UPC, FC/APC etc.
Fiber Type; 0=SMF-28, 1=flexcore, 2=50/125??m,
3=62.5/125??m, 4=others
Pigtail Type; 0=250??m, 1=900??m, 2=2mm, 3=3mm 4=others
Coupling Ratio; 01/99, 50/50 etc.
Operating Wavelength; 131=1310nm, 155=1550nm, 1315=1310&1550nm etc.
Port Number; 1*2, 2*2, 1*4, 1*8 etc.
Grade; U=Ultra, P=Perfect, A=Grade A, X=On customer request
Type; SSC; PIC; WBC; DWC; TWC; PMC; WDM; HWDM; SSSC; SWBC; SDWC; STWC; PCOM; MMC etc.