Shanghai Refly newly released a new series polarization maintaining optical fiber coupler,which is also based on fused biconical tap technology and adopts polarization maintaining optical fiber.The main feature is that it can transfer two orthometric linearly polarized light stably and keep their polarization state unchangeable respectively. Therefore it is widely used in optical fiber communication system (DWDM,EDFA ect.) ,optical fiber sensor (fibre optic hydrophone, interferometric fiber optic gyroscope ect.).
1x2(2x2) Fused PM stainless steel tube optical couplers
Features
Low Excess Loss
High Extinction Ratio
High Power Handling
Available for Slow or Fast Axis Operation
Telcordia GR-1221 Compliant Test
Specifications
|
Parameter
|
Unit
|
Premium
|
A grade
|
Premium
|
A grade
|
|
|
Port Configuration
|
1x2 or 2x2
|
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|
Central Wavelength
|
nm
|
1310,1550 or 1310/1550
|
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|
Bandwidth
|
nm
|
±20
|
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|
Excess Loss
|
Typ.
|
dB
|
0.4
|
0.6
|
0.2
|
0.3
|
|
Excess Loss
|
Max.
|
dB
|
0.6
|
0.8
|
0.4
|
0.6
|
|
PER for Through Port
|
Min.
|
dB
|
20
|
17
|
20
|
17
|
|
Return Loss*
|
Min.
|
dB
|
50
|
45
|
50
|
45
|
|
Directivity
|
Min.
|
dB
|
55
|
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|
Operating power
|
Max.
|
W
|
5
|
|||
|
Operating Temperature
|
℃
|
-40 to +85
|
||||
|
Storage Temperature
|
℃
|
-50 to +85
|
||||
|
Package Type
|
mm
|
¢3x54mm
|
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Noted: Above PER is for more than 10%(CR) port, it’s 2dB lower for no more than 10%(CR) port, and 4dB lower for no more than 5%(CR) port. All specifications are before connectors. PER is 2dB lower and EL is 0.2dB higher after connectors.
Fiber Type
|
Fiber Type
|
PM Fiber Port
|
SM Fiber Port
|
|
Type 1
|
Panda Fiber
|
SM28e or Equivalent Fiber
|
|
Type 2
|
Panda Fiber
|
HI1060 Fiber or Equivalent Fiber
|
Order information
|
PMOC
|
wavelength
|
structure
|
splitting ratio
|
package type
|
Fiber length
|
Connector type
|
|
13=1310nm
15=1550nm
1315=1310&1550nm
|
1x2
2x2
|
05=90.5:0.5
99=99:1
98=98:2
95=95:5
90=90:10
80=80:20
|
1=250um bare fiber
2=0.9mm tight buffered
3=2mm cable
4=3mm cable
|
1=1.0m
2=1.5m
3=2.0m
C=Customize
|
o=none
1=FC/APC
2=FC/PC
3=SC/APC
4=SC/PC
5=ST/APC
6=ST/PC
7=LC/APC
8=LC/PC
C=Customize
|
Application
2 optical amplifier
Power monitoring
Telecomm system
Testing equipment