COMMUNICATIONS COMPONENTS
Key Features • 700 to 1150 nm operation
• Available in any coupling ratio
• All fiber — no lens alignment
• No unwanted reflections
• Low light loss
• High power handling
The JDSU near infrared fused coupler splits or combines light at any selected
wavelength from 700 to 1150 nm. Designed for applications in fiber laser, sensor
and avionics applications, the coupler utilizes low loss fused fiber technology. No
light leaves the fiber and therefore no alignment is required; and there are no
unwanted reflections. Furthermore the output fiber pigtails may be directly
integrated into beam delivery systems.
Applications
• Fiber lasers
•Sensors
• Avionics
• Biomedical equipment
• Research
Fused Coupler, Near Infrared
NORTH AMERICA:800 498-JDSU (5378) WEBSITE:www.jdsu.comWORLDWIDE:+800 5378-JDSU
Configuration
2
FUSED COUPLER, NEAR INFRARED
1x2
2x2
P4 (Blue)
P1 (Red) COMMON (Input) P2 (Blue) SIGNAL (Input)
P3 (Red) TAP (Output)
P1 (Red) COMMON (Input) P2 (Blue) SIGNAL (Input)
P3 (Red) TAP (Output)
Insertion Loss
Coupling Ratio Grade Available Housing Option Signal Path Insertion Loss1, 2 Tap Path Insertion Loss1, 2
(Maximum) (Maximum)
10% A 3, 4, 5, 6 0.9 dB 12.2 dB
10% B 3, 4, 5, 6 1.1 dB 12.4 dB
20% A 3, 4, 5, 6 1.5 dB 8.4 dB
20% B 3, 4, 5, 6 1.7 dB 8.6 dB
30% A 3, 4, 5, 6 2.2 dB 6.4 dB
30% B 3, 4, 5, 6 2.4 dB 6.5 dB
40% A 3, 4, 5, 6 3.0 dB 4.9 dB
40% B 3, 4, 5, 6 3.2 dB 5.1 dB
50% A 3, 4, 5, 6 3.8 dB 3.8 dB
50% B 3, 4, 5, 6 4.0 dB 4.0 dB
1. Insertion loss at operating wavelength range (not including PDL, 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).
Specifications
3
Parameter Grade A Grade B
Operating wavelength range1Any wavelength within the 700 to 1150 nm range
Excess loss Typical 0.30 dB 0.50 dB
Return loss/Directivity Minimum 50 dB
Pigtail tensile load Maximum 5 N
Optical power handling Maximum 4 W
Operating temperature range2-40 to 75 °C
Storage temperature range -40 to 85 °C
Fiber type Speciality fiber
1. Any specific wavelength point from within the range 633 to 850 nm may be selected. For wavelengths outside of this range, contact JDSU with specific requirements.
2. For connectorised component, operating temperature range is -5 to 75 °C.
FUSED COUPLER, NEAR INFRARED
Housing Option
Housing Code Description 1x2, 2x2 Dimensions (mm) Pigtail
3 Regular 3.0 (Ø) x 50 (L) Primary-coated fiber
4 Ø 0.9 mm slim 3.0 (Ø) x 60 (L) Ø 0.9 mm loose-tube
5 Ø 0.9 mm semi-ruggedized 5.0 (Ø) x 75 (L) Ø 0.9 mm loose-tube
6 Ø 3.0 mm fully ruggedized 80 (L) x 10 (W) x 8 (H) Ø 3.0 mm fan-out sleeving
NORTH AMERICA:800 498-JDSU (5378) WEBSITE:www.jdsu.comWORLDWIDE:+800 5378-JDSU
LC is a registered trademark of Lucent Technologies.
4
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: FFS-060K31A10 (Fused Fiber Speciality Coupler, 1060 nm, 50/50 coupling ratio, regular housing, 1x2, A grade, 1 m
pigtails, no connectors)
FUSED COUPLER, NEAR INFRARED
Code Housing2
3Regular
4 Ø 0.9 mm slim
5 Ø 0.9 mm
semi-ruggedised
6 Ø 3.0mm fully
ruggedised
Code Configuration
11x2
22x2
Code Wavelength
(Second and
Third Digit)
Examples:
33 x33 nm
32 x32 nm
57 x57 nm
Code Wavelength
(First Digit)
7 7xx nm
8 8xx nm
9 9xx nm
0 10xx nm
1 11xx nm
FFS-
Code Coupling Ratio1
A 10%
C 20%
E 30%
H 40%
K 50%
Code Pigtail Length3
(Minimum)
0 0.5 meter
11 meter
Code Connectors2, 4
0None
1FC/PC
3 FC/APC
5 SC/APC
9 FC/UPC
A SC/UPC
BLC
5
Code Grade
AGrade A
BGrade B
1. Other coupling ratio are available. Please contact JDSU for ordering codes of coupling ratios not listed.
2. Connectors may be fitted to housing types 4, 5 and 6. For connectorisation of housing type 3, please contact JDSU sales office.
3. Minimum pigtail length. Other pigtail lengths are available on request. When the pigtail has been modified to include a
connector, pigtail length measurment includes the connector end face.
4. Excess Loss in specification table does not include connector losses.
5. LC connector is not available for housing code 6, fully ruggedised housing.
Product specifications and descriptions in this document subject to change without notice. © 2007 JDS Uniphase Corporation 21025845 Rev. 003 10/05 FFSNI.DS.CC.AE March 2007
