Product Details
1x2 Single Mode FBT Fiber Coupler 1310/1550nm Dual window coupler
(DWC) is built by asymmetric coupling technique. The operating
bandwidth of this normal coupler is expanding to ±40nm, and the
ultra broadband coupler is expanding to ±80nm. The DWC coupler has
the same coupling ratio on both 1310nm and 1550nm communication
windows, and with low excess loss and low PDL. DWC couplers are
widely used for communication systems, CATV and FTTH.
Features
Low insertion loss
Low PDL
High channel isolation
Excellent environmental reliability
Application
CATV Links
PON Networks
FTTX Systems
Optical Signal Distribution
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) | 50/50 | ≤3.6 | ≤3.8 | ≤3.8 | ≤4.0 |
45/55 | ≤4.2/3.2 | ≤4.4/3.4 | ≤4.5/3.3 | ≤4.7/3.5 |
40/60 | ≤4.7/2.7 | ≤4.9/2.9 | ≤5.0/2.8 | ≤5.2/3.0 |
35/65 | ≤5.4/2.4 | ≤5.7/2.6 | ≤5.8/2.5 | ≤6.1/2.7 |
30/70 | ≤6.0/1.9 | ≤6.3/2.1 | ≤6.4/2.0 | ≤6.7/2.2 |
25/75 | ≤7.0/1.7 | ≤7.3/1.9 | ≤7.3/1.7 | ≤7.7/1.9 |
20/80 | ≤7.9/1.3 | ≤8.4/1.4 | ≤8.3/1.3 | ≤8.7/1.5 |
15/85 | ≤9.5/1.0 | ≤10.0/1.2 | ≤9.6/1.0 | ≤10.1/1.2 |
10/90 | 9.2~11.2/≤0.75 | 8.80~11.40 /≤0.8 | 9.15~11.05 /≤0.75 | 8.75~11.45/≤0.8 |
5/95 | 12.05~14.15/≤0.4 | 11.60~14.60 /≤0.5 | 12.00~14.25/≤0.45 | 11.50~14.70/≤0.5 |
3/97 | 14.1~16.5/≤0.35 | 13.60~17.05/≤0.45 | 14.00~16.60 /≤0.35 | 13.45~17.15/≤0.45 |
2/98 | 15.75~18.45/≤0.3 | 15.15~19.00/≤0.4 | 15.60~18.60/≤0.3 | 14.95~19.20/≤0.4 |
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 | ≤0.2 | ≤0.15 | ≤0.2 |
Directivity (dB) | ≥55 |
Operating temperature (℃) | -40 ~ +85 |
PackageDimension | 250μm bare fiber:Φ3.0×45mm 900μm loose tube:Φ3.0×54mm Φ3.0×60mm
900um/2mm/3mm loosetube:90×20×10mm |
*The above specification is without connector |
*Insertion Loss around 1380nm (water peak) is not counted in the
specifications above. |
Company Profile
Unifiber, a Hi-Tech company specialized in developing and
manufacturing optical fiber products. Based on strong hardware
development, we are offering the most cost-effective cabling
solutions on optical networking, data center, FTTx and OEM
solution.
Our featured products includes FTTA Waterproof Connectors,
indoor/outdoor armored cable assembly, Pre-terminated Multifiber
Cables, FTTH flat drop patch cable, LC Uniboot, 6~12 fiber pigtails
and MTP/MPO series. We can also provide adapter, attenuator, fused
coupler, PLC Splitter, WDM and various of patch panel, terminal
box, ODF and tool series products..
Providing the highest quality products and services is always the
most important principle to Unifiber, All our products are
subjected to strict test according to BELLCORE standard and fully
RoHS compliant. Through the efforts of our team, Unifiber has
obtained a widespread acknowledgement, Our products continue to
enjoy growing acceptance both in China and abroad.



