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Description
Optical Circulator
An optical circulator is a unidirectional three-port device with irreversible transmission that allows light to travel in a specific direction. According to their physical principles, circulators can be divided into non-polarization-maintaining circulators and polarization-maintaining circulators.
The Vsunlight Tri-Port or four-Port Optical Circulator is a passive device that transmits high-frequency signal energy in one direction, ensuring that light travels in only one direction. It has the characteristics of low insertion loss, high isolation, and low polarization-related loss. The product has stable performance and strong reliability. All versions are designed for use in an outdoor environment within a temperature range of –10 ℃ to +70 ℃
Optical Performance
Parameter | Unit | Specifications | |
Physical | |||
Package | / | Refer To The Ordering Information | |
Environmental | |||
Operating Temperature | ℃ | -40 ~ +85 | |
Storage Temperature | ℃ | -40 ~ +85 | |
Optical Interface | |||
Connector | / | Refer To The Ordering Information | |
Optical | |||
Structure | / | Port 1 to Port 2 to Port 3 to port 4 | |
Operating Wavelength | nm | λc±30 | |
Grade | / | P | A |
Insertion Loss@Typ | dB | 0.6 | 0.8 |
Insertion Loss@Max | dB | 0.8 | 1.0 |
Isolation@λc 23℃ Typ | dB | 50 | 45 |
Isolation@λc 23℃ Min | dB | 40 | 38 |
Polarization Dependent Loss | dB | ≤0.15 | ≤0.20 |
Polarization Mode Dispersion | Ps | ≤0.20 | |
Return Loss | dB | ≥55 | |
CrosstalK | dB | ≥55 | |
Insertion Loss Temperature Sensitivity | dB/℃ | ≤0.005 | |
Power Handing | mW | ≤500 | |
Notes:
- Insertion loss includes connector loss and covers the entire operating temperature.
- The specification does not include the connector.The insertion loss of the connector increases by 0.3dB and the Return Loss decreases by5dB.
- Above is the Vsunlight standard, if you have any other requirements, please contact sales@vsunlight.net for more options
ordering Information
CIR | Operating Wavelength | Grade | Pigtail Type | PackageType(mm) | Fiber Length | Connector Type |
1=1310nm 2=1550nm 3=1625nm 4=1650nm X=Customized
| 1=P Grade 2=A Grade
| 0=250umbare fiber 1=0.9mmloosetube 2=2.0mmloose tube 3=3.0mmloose tube X=Customized
| 1=Φ4.6*L33(glass tube ) 2=Φ5.5*L50 3=Φ5.5*L38 X=Customized
| 1=0.5m 2=1.0m 3=1.5m 4=2.0m 5=2.5m 6=3.0m X=Customized
| OO=None FU=FC/PC FA=FC/APC SU=SC/PC SA=SC/APC LU=LC/PC LA=LC/APC ST=ST/UPC XX=Customized |
|  |
| Tri-Port Optical Circulator | four-Port Optical Circulator |
Optical circulator light path diagram
Optical circulator is divided into two types: three port and four port, The flow direction of signal light in it is
Port 1 →Port 2 →Port 3 → Port1, Port1 →Port2 →Port 3 →Port 4 → Port1, otherwise, the signal light is isolated.
 |  |
| Tri-Port Optical Circulator | Four-Port Optical Circulator |
Optical circulator Structural diagram
According to their physical principles, circulators can be divided into non-polarization-maintaining circulators and polarization-maintaining circulators.
 |  |
polarization-maintaining circulators | non-polarization-maintaining circulators |
Optical circulator application
It is used in dense Wavelength-division multiplexing system, single fiber bidirectional transmission,
optical time threshold reflectometer (OTDR), and dispersion compensator.
Features
- Low insertion loss
- High return loss
- Low polarizationdependentloss(PDL)
- Ultra Stable and Highly Reliable
- Epoxy-free optical path
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