The Fiber Optic Circulator is a three-port device that operates in one direction without allowing signals to travel back, making it suitable for various optical systems. A signal entering through Port 1 will exit from Port 2 with minimal loss, while a signal coming from Port 2 will leave via Port 3 with little attenuation. Importantly, the device isolates all signals attempting to flow in reverse; this means no signal can go from Port 2 to Port 1 or from Port 3 back to Port 2. It functions independently of polarization (although polarization-dependent versions are available) and has low polarization-dependent loss (PDL). The optical path is free of epoxy, making it capable of handling relatively high-power applications. This isolator boasts a compact design along with enhanced stability and reliability.
—- Fiber pigtailed with protective tubing —- Polarization independent —-Small and compact design —-SM or PM fibers versions —-Epoxy-free optical path —-Low insertion loss, —-low crosstalk High stability, —-long-term reliability —-High isolation, —-Low PDL | Applications: —-Standard applications —-One-directional transmission of signals —-In research and development —-Optical dispersion compensation —-Production of amplifiers, —-Add/Drop modules, —-DWDM networks |
Specifications:
|
Parameter |
Unit |
Circulator |
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|
Type |
|
3-ports
Fiber Optic Circulator |
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|
Center wavelengths* |
nm |
1030 |
1064 |
1310 |
1550 |
2000 |
C+L
Band |
|
Bandwidth |
nm |
±10 |
±10 |
±30 |
±30 |
±30 |
1520-1620 |
|
Insertion loss (Port 1 to Port 2) |
dB |
<2 |
<2 |
<1.0 |
<1.0 |
<1.5 |
<1.0 |
|
Insertion loss (Port 2 to Port 3) |
dB |
<2 |
<2 |
<1.0 |
<1.0 |
<1.5 |
<1.0 |
|
Isolation
(Port 1 to Port
2) |
dB |
>20 |
>20 |
>50 |
>40 |
>35 |
>35 |
|
Isolation
(Port 2to Port
3) |
dB |
>20 |
>20 |
>50 |
>40 |
>35 |
>35 |
|
Return loss
(per port) |
dB |
>50 |
>50 |
>60 |
>50 |
>50 |
>50 |
|
Polarization
dependant loss (PDL) (Port 1 to Port 2) |
dB |
<0.20 |
<0.20 |
<0.06 |
<0.10 |
<0.20 |
<0.02 |
|
Polarization
dependant loss (PDL) (Port 2 to Port 3) |
dB |
<0.20 |
<0.20 |
<0.06 |
<0.10 |
<0.20 |
<0.02 |
|
Polarization
mode dispersion (PMD) |
ps |
<0.25 |
<0.25 |
<0.10 |
<0.20 |
<0.25 |
<0.20 |
|
Extinction
ratio (Port 1 to Port 2) |
dB |
>20 |
>20 |
>20 |
>20 |
>20 |
>20 |
|
Extinction
ratio (Port 2 to Port 3) |
dB |
>20 |
>20 |
>20 |
>20 |
>20 |
>20 |
|
Crosstalk
(Port 1 to Port
3) |
dB |
>50 |
>50 |
>50 |
>50 |
>50 |
>50 |
|
Power
handling (CW)** |
W |
<0.3 |
<0.3 |
<0.5 |
<0.5 |
<0.5 |
<0.5 |
|
Tensile
load |
N |
<5 |
<5 |
<5 |
<5 |
<5 |
<3 |
|
Fibre type*** |
– |
HI1060 PM980 |
HI1060 PM980 |
SMF-28 PM1550 |
SMF-28 PM1550 |
SM1950 PM1550 |
SMF-28 PM1550 |
|
Fibre
length |
m |
Custom; 1 |
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|
Cable
jacket size |
mm |
Bare
fiber; 0.9 tubing |
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|
Connectors |
– |
None;
FC/PC; FC/APC; SC/PC; SC/APC; LC/PC; LC/APC |
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|
Operating
temperature |
°C |
-5
to +70 |
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|
Storage temperature |
°C |
-40
to +85 |
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|
Dimensions (LxD)
(approx.) |
mm |
50
x 5.5 |
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|
Parameter |
Unit |
Value |
|
Center Wavelength* |
Nm |
780, 850, 976 |
|
Operating Wavelength Range |
Nm |
±10 |
|
Typ. Peak Isolation |
dB |
30 |
|
Max. Isolation @23°C |
dB |
25 |
|
Max. Insertion Loss @23°C |
dB |
1.5 |
|
Max. Polarization Dependent Loss @23°C |
dB |
0.15 |
|
Min. Return Loss (Input/Output) |
dB |
45 |
|
Min. Cross Talk |
dB |
45 |
|
Average Optical Power |
W |
0.3, 1, 5, 10 |
|
Pulse Peak Power |
kW |
10 |
|
Max Tensile Load |
N |
5 |
|
Operating Temperature |
°C |
+10~+50 |
|
Storage |
°C |
0~+60 |
|
Fiber type** |
|
SM, PM or customer specified |
- Custom center wavelengths available.
** High power version is also available upon request
*** Custom fiber type is also available
Specifications can vary depending on the wavelength and fiber type.
4-ports version available upon request.