FOLINK's Singlemode coupler 1X2 2X2 offer very low insertion loss, low polarization dependence and excellent environmental stability Accurate coupling ratio from 50/50 to 1/99 and fiber type 250um bare fiber, 3mm and 900um loose tube fiber are available with very tight uniformity. Singlemode standard coupler and wideband coupler components find extensive application to perform power splitting and monitoring functions in all kinds of optical communication systems.
Passed Telcordia GR-1221-CORE, and 85℃, 85%RH test up to 1500 hours
Low excess loss
Applications
Long-haul Telecommunications
CATV Systems & Fiberoptic Sensors
Local Area Network
FTTH & LAN
Performance Specifications
Single Standard Couplers | |||
Grade |
P Grade |
A Grade |
|
Coupling Ratio（%） |
50/50 |
50/50 |
|
Excess Loss (Typical)（dB） |
0.07 |
0.1 |
|
Maximum lnsertion loss（dB） |
3.4 |
3.5 |
|
Polarization Sensitivity (dB) |
0.15 |
0.2 |
|
Operating Wavelength（nm） |
1310,1480,1550 or custom wavelength |
||
Single Wideband Couplers | |||
Grade |
P Grade |
A Grade |
|
Coupling Ratio（%） |
50/50 |
50/50 |
|
Excess Loss (Typical)（dB） |
0.07 |
0.1 |
|
Maximum lnsertion loss（dB） |
3.4 |
3.6 |
|
Polarization Sensitivity (dB) |
0.15 |
0.2 |
|
Operating Wavelength（nm） |
1310±40,1550±40,or custom wavelength |
||
Coupling Ratio（%） |
1~50 |
||
Directivity (dB) |
≥55 |
||
Operating Temperature(℃) |
-20~+80 |
||
Storage Temperature(℃) |
-40~+85 |
||
Fiber Type |
Corning singlemode SMF-28,DS fiber or flexcore |
||
Fiber Pigtail Length（m） |
1 |
||
Port Configuration |
1×2 or 2×2 |
||
Dimensions (mm) |
Package D,E,F,G |
||
Coupling Ratio/insertion Loss Conversion Chart
Coupling Ratio |
lnsertion Loss |
|
P Grade |
A Grade |
|
40/60 |
4.4/2.5 |
4.6/2.8 |
30/70 |
5.6/1.8 |
6.0/2.0 |
20/80 |
7.4/1.1 |
7.7/1.3 |
10/90 |
10.8/0.6 |
11.6/0.8 |
5/95 |
14.2/0.4 |
14.6/0.5 |
2/98 |
18.5/0.2 |
19.0/0.3 |
1/99 |
21.0/0.2 |
21.5/0.3 |
Package Dimensions & Pigtail Style
Package Dimensions: | |
Package D：3mm x 45mm stainless steel tube |
|
Package E：3mm x 54mm stainless steel tube |
|
Package F：3mm x 60mm stainless steel tube |
|
Package G：10mm x 20mm x 90mm case |
|
Pigtail Style: | |
Package D,E： |
250um bare fiber |
Package F |
250um bare fiber or 900um loose tube |
Package G： |
2mm,3mm cable or 900um loose tube |
