COMMUNICATIONS COMPONENTS
Fused Coupler, 980 nm
Key Features
• Ultra low pump loss
• Minimum wastage of pump power
• High EDFA output power
• Wide range of regular parts available
• Proven reliability
Applications
• EDFA pump redundancy and sharing
• EDFA pump monitoring
• Fiber lasers
The JDSU fused coupler, 980 nm, enables the accurate splitting and monitoring of
pump power in erbium doped fiber amplifiers. JDSU proprietary manufacturing
technology provides uniquely low excess loss, along with low polarization and
temperature dependence for all ports.
These high performance regular parts are available in a wide variety of tap ratios,
housing and connector options and can therefore be readily specified in a wide
variety of applications, enabling rapid design cycles and new project builds.
Standard variants for 960 nm and 1060 nm may also be selected.
Reliability is assured through qualification to Telcordia GR-1221, with a field
proven FIT rate of <1.
NORTH AMERICA
:
800 498-JDSU (5378)
WORLDWIDE
:
+800 5378-JDSU
WEBSITE
:
www.jdsu.com
FUSED COUPLER, 980 NM
2
Fused Coupler, 980 nm, 50/50
Insertion Loss
4.0
Insertion Loss (dB)
3.5
3.0
2.5
Insertion Loss P1-3
Insertion Loss P1-2
2.0
974
976
978
980
982
984
986
Wavelength (nm)
Configuration
1x2
P1 (Red) COMMON (Input)
P2 (Blue) SIGNAL (Output)
P3 (Red) TAP (Output)
2x2
P1 (Red) COMMON (Input)
P2 (Blue) SIGNAL (Output)
P4 (Blue)
P3 (Red) TAP (Output)
FUSED COUPLER, 980 NM
3
Insertion Loss
Coupling
Ratio
Grade
Signal Path
Insertion Loss
1, 2
TDL
3
(Min./Max.)
Max.
NA/0.15 dB
NA/0.20 dB
NA/0.40 dB
NA/0.50 dB
NA/0.65 dB
NA/0.75 dB
NA/1.40 dB
NA/1.50 dB
NA/2.00 dB
NA/2.20 dB
NA/2.60 dB
NA/2.80 dB
2.60/3.40 dB
2.50/3.60 dB
0.02 dB
0.02 dB
0.08 dB
0.08 dB
0.08 dB
0.08 dB
0.10 dB
0.10 dB
0.10 dB
0.10 dB
0.10 dB
0.10 dB
0.10 dB
0.10 dB
Tap Path
Insertion Loss
1, 2
TDL
3
(Min./Max.)
Max.
18.4/21.5 dB
15.0/22.0 dB
11.3/14.8 dB
11.0/15.2 dB
9.00/11.5 dB
8.50/11.8 dB
5.60/8.40 dB
5.40/8.60 dB
4.10/6.40 dB
4.00/6.50 dB
3.20/4.70 dB
3.10/4.80 dB
2.60/3.40 dB
2.50/3.60 dB
0.20 dB
0.20 dB
0.15 dB
0.15 dB
0.13 dB
0.13 dB
0.10 dB
0.10 dB
0.10 dB
0.10 dB
0.10 dB
0.10 dB
0.10 dB
0.10 dB
1%
1%
5%
5%
10%
10%
20%
20%
30%
30%
40%
40%
50%
50%
P
A
P
A
P
A
P
A
P
A
P
A
P
A
1. Insertion loss over operating wavelength range (not including TDL or connector losses).
2. In 2x2 couplers with a coupling ratio of 20% or lower, insertion loss is not specified for launch through second input port (P4).
3. Change in insertion loss from -5 to 75 °C.
Housing Option
Housing Code
2
3
4
5
6
Description
Miniature
Regular
Ø 0.9 mm slim
Ø 0.9 mm semi-ruggedized
Ø 3.0 mm fully ruggedized
1x2, 2x2 Dimensions (mm)
3.0 (Ø) x 45 (L)
3.0 (Ø) x 50 (L)
3.0 (Ø) x 60 (L)
5.0 (Ø) x 75 (L)
80 (L) x 10 (W) x 8 (H)
Pigtail
Primary-coated fiber
Primary-coated fiber
Ø 0.9 mm loose-tube
Ø 0.9 mm loose-tube
Ø 3.0 mm fan-out sleeving
FUSED COUPLER, 980 NM
4
Specifications
Parameter
Operating wavelength range
1
Return loss/Directivity
Pigtail tensile load
Optical power handling
Operating temperature range
2
Storage temperature range
960 nm
955 to 965 nm
55 dB
5N
4W
-40 to 75 °C
-40 to 85 °C
980 nm
975 to 985 nm
55 dB
5N
4W
-40 to 75 °C
-40 to 85 °C
1060 nm
1055 to 1065 nm
55 dB
5N
4W
-40 to 75 °C
-40 to 85 °C
Minimum
Maximum
Maximum
1. For wavelengths within ±5 nm to the operating wavelength range, the worst-case changes in insertion loss and WDL are shown as follows:
tap ratio=1%, maximum insertion loss and WDL increase=0.65 dB
tap ratio=5%, maximum insertion loss and WDL increase=0.50 dB
tap ratio=10%, maximum insertion loss and WDL increase=0.40 dB
tap ratio=50%, maximum insertion loss and WDL increase=0.20 dB.
2. For connectorised components operating range is -5 to 75 °C. TDL is specified from -5 to 75 °C.
FUSED COUPLER, 980 NM
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
customer.service@jdsu.com.
Sample: FFC-5K31PN210
FFC-
Code
5
8
F
Passband
Wavelength
980 nm
1060 nm
960 nm
Code
2
3
4
5
6
Code
1
5
A
C
E
H
K
Coupling Ratio
1%
5%
10%
20%
30%
40%
50%
Housing
Miniature
Regular
Ø 0.9 mm slim
Ø 0.9 mm
semi-ruggedized
Ø 3.0 mm
fully ruggedized
Code
A
P
Grade
Grade A
Premium
N
Code
2
5
Fiber Type
Lucent BFO5635-02
Corning Hi 1060 Flex
Code
0
1
3
5
9
A
B
Connectors
NONE
FC/PC
FC/APC
SC/APC
FC/UPC
SC/UPC
LC
2
Code
N
Bandwidth
Narrowband
Code
0
1
Pigtail Length
1
(Minimum)
0.5 meter
1 meter
Code
1
2
Configuration
1x2
2x2
1. Other pigtail lengths are available on request.
2. Not available for housing option 6.
Flexcor and SMF-28 are registered trademarks of Corning Incorporated.
LC is a registered trademark of Lucent Technologies.
Telcordia is a registered trademark of Telcordia Technologies Incorporated.
All statements, technical information and recommendations related to the products herein are based upon information believed to be
reliable or accurate. However, the accuracy or completeness thereof is not guaranteed, and no responsibility is assumed for any
inaccuracies. The user assumes all risks and liability whatsoever in connection with the use of a product or its application. JDSU reserves
the right to change at any time without notice the design, specifications, function, fit or form of its products described herein, includ-
ing withdrawal at any time of a product offered for sale herein. JDSU makes no representations that the products
herein are free from any intellectual property claims of others. Please contact JDSU for more information. JDSU and the JDSU logo are
trademarks of JDS Uniphase Corporation. Other trademarks are the property of their respective holders. ©2006 JDS Uniphase
Corporation. All rights reserved. 10135722 Rev. 005 02/06 FFC980.DS.CC.AE
NORTH AMERICA
:
800 498-JDSU (5378)
WORLDWIDE
:
+800 5378-JDSU
WEBSITE
:
www.jdsu.com
Switching Power Supply Study Group
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