Fused Coupler, Single Window, Low loss C+L Band or S Band
FFCK Series
Key Features
• High-power handling
• Wide range of regular parts readily available
• Proven reliability
Applications
• Signal monitoring in C+L band
EDFA or RAMAN amplifier
• Network expansion
• Network monitoring
The fused coupler, low loss, C+L band or S band enables the accurate splitting and
monitoring of optical signals in single-mode fiber. In addition, JDSU
manufacturing technology provides uniquely low excess loss and wavelength
dependence, along with low polarization and temperature dependence for both
signal and tap ports.
These high-performance standard parts are available in a variety of tap ratios,
operating wavelengths, and housing and connector options, and can therefore be
specified in a wide range of applications, enabling rapid design cycles and new
project builds.
Compliance
• Telcordia GR-1221
NORTH AMERICA
:
800 498-JDSU (5378)
WORLDWIDE
:
+800 5378-JDSU
WEBSITE
:
www.jdsu.com
FUSED COUPLER, SINGLE WINDOW, LOW LOSS C+L BAND
OR S BAND FFCK SERIES
2
Dimensions Diagrams
Specifications in mm unless otherwise noted
1x2 Models, L-Package
1x2 Models, S-Package
Ф0.9
Ф3.56
2.0
54
3.0
70
Insertion Loss
Coupling
Ratio
Grade
Signal Path
Insertion
WDL
3
PDL
4
Loss
1,2
(Min./Max.) Max.
Max.
(dB)
(dB)
(dB)
NA/0.15
NA/0.18
NA/0.18
NA/0.20
NA/0.23
NA/0.28
NA/0.32
NA/0.40
NA/0.60
NA/0.70
NA/1.15
NA/1.25
NA/1.75
NA/1.85
NA/2.50
NA/2.60
2.7/3.30
2.6/3.50
0.04
0.06
0.05
0.07
0.05
0.07
0.06
0.08
0.07
0.09
0.11
0.15
0.15
0.20
0.20
0.30
0.25
0.40
0.03
0.05
0.03
0.05
0.03
0.05
0.03
0.05
0.04
0.06
0.05
0.07
0.06
0.08
0.07
0.09
0.08
0.10
TDL
5
Max.
(dB)
0.02
0.02
0.02
0.02
0.04
0.04
0.08
0.08
0.08
0.08
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
Tap Path
Insertion
WDL
3
PDL
4
Loss
1,2
(Min./Max.) Max.
Max.
(dB)
(dB)
(dB)
18.2/23.0
17.4/23.0
16.0/18.6
15.2/20.0
14.2/16.5
13.7/17.4
12.1/14.3
11.8/14.8
9.40/11.1
9.00/11.4
6.30/7.90
6.00/8.20
4.60/5.80
4.50/6.00
3.85/4.40
3.70/4.60
2.70/3.30
2.60/3.50
0.90
1.20
0.60
1.00
0.50
0.90
0.45
0.80
0.40
0.60
0.37
0.55
0.35
0.50
0.30
0.45
0.25
0.40
0.20
0.25
0.15
0.20
0.14
0.20
0.12
0.20
0.10
0.15
0.10
0.15
0.10
0.15
0.09
0.11
0.08
0.10
TDL
5
Max.
(dB)
0.20
0.20
0.15
0.15
0.15
0.15
0.15
0.15
0.13
0.13
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
1%
1%
2%
2%
3%
3%
5%
5%
10%
10%
20%
20%
30%
30%
40%
40%
50%
50%
1.
2.
3.
4.
5.
P
A
P
A
P
A
P
A
P
A
P
A
P
A
P
A
P
A
Tap ratio
≤
five percent, the Insertion Loss including WDL, PDL and TDL; Tap ratio > five percent, the Insertion Loss including WDL and PDL, not including TDL.
In 2x2 couplers with a coupling ratio of 20 percent or lower, insertion loss is not specified for launch through second input port (P4).
Change in insertion loss over the operating wavelength range.
Change in insertion loss over all input polarization states.
Change in insertion loss from –5 to 75°C.
FUSED COUPLER, SINGLE WINDOW, LOW LOSS C+L BAND
OR S BAND FFCK SERIES
Specifications
Parameter
Operating wavelength range
1
Return loss/directivity
Pigtail tensile load
Optical Power handling
2
Operating temperature range
3
Storage temperature range
Environmental qualification
Package dimensions
S package (D x L)
L package (D x L)
H package (L x W x H)
C+L band
1528 to 1605 nm
Minimum
Maximum
Maximum
S band
1425 to 1500 nm
55 dB
5N
4W
-40 to 75°C
-40 to 85°C
Telcordia GR-1221
3.0 x 54 mm
3.6 x 70 mm
85 x 17.8 x 7.5 mm
1. For wavelength within ±5 nm of the specified range performance will be maintained for signal path insertion loss, PDL, TDL, directivity and return loss. The only parameters to increase will be tap
insertion loss and WDL. Maximum values of increase are:
Tap ratio = 1%, maximum tap insertion loss and WDL increase = 0.1 dB.
Tap ratio = 2 to 9%, maximum tap insertion loss and WDL increase = 0.07 dB.
Tap ratio = 10 to 50%, maximum tap insertion loss and WDL increase = 0.05 dB.
2. For 1x2 and 2x2 configurations.
3. TDL is specified from –5 to 75°C.
Ordering Information
For more information on this or other products and their availability, please contact your local JDSU account manager or
JDSU directly at 1-800-498-JDSU (5378) in North America and +800-5378-JDSU worldwide, or via e-mail at
SMF-28 is a registered trademark of Corning Incorporated. LC and ST are registered trademarks of Lucent Technologies. Telcordia is a registered trademark of Telcordia Technologies Incorporated.
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