Product Details
Low Excess Loss 1x2 50:50 Coupling Ratio Single Mode 1310nm And
1550nm Dual Window Fiber Optic Coupler (DWC)
1x2 Single Mode 1310nm and 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 excess
loss Low PDL
High stability and reliability
Application
CATV
Optical communication systems
Testing instruments
Specifications
Type | Normal | Ultra Broadband |
Parameter |
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 |
33/67 | ≤5.7/2.2 | ≤6.0/2.4 | ≤6.1/2.3 | ≤6.4/2.5 |
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 |
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.



