PM Circulator Features
Low Insertion Loss
Wide Band, High Isolation
High Extinction Ratio
Compact In-Line Package
High Stability and Reliability
Epoxy Free Optical Path
PM Circulator specification
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Parameter |
P Grade |
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Configuration |
Port 1 to Port2 to Port 3 |
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Operation Wavelength (nm) |
1310 ± 30 or 1550 ± 30 |
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Insertion Loss (dB) |
Typical |
0.8 |
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| Maximum |
1.0 |
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Typical Isolation (dB) |
50 |
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Minimum Isolation (dB) |
40 |
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Extinction Ratio(dB) |
Minimum |
18 |
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| Typical |
18 |
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Cross Talk(dB) |
>50 |
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| Return Loss (dB) |
>50
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Power Handling (mW) |
300 |
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| Direction of incident polarization |
Slow or fast axis
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Operating Temperature (°C) |
0 ~ +70 |
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Storage Temperature (°C) |
-40 ~ +85 |
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| Fiber Type |
PM fiber on all ports
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Package Dimension (mm) |
ø5.5 x L50(L63 for 900um tube)
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1. The PM fiber and the connector key are aligned to the slow axis.
2. For devices with connectors, insertion loss will be 0.3dB higher, return loss will be 5dB lower, and extinction loss will be 2dB lower.
PM Circulator ordering information
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Port |
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Wavelength |
Grade |
Pigtail Style |
Fiber Length |
In/Out Connector |
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3=3 Port
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13=1310nm
15=1550nm |
P=P Grade
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1=250um Bare Fiber
2=400um Bare Fiber
3=900um loose tube |
1 = 0.75m
2=1m |
0=None
1=FC/APC 2=FC/PC 3=SC/APC 4=SC/PC |