The 3 port Polarization Insensitive Optical Circulator is a compact, high performance light-wave component that routes incoming signals from Port 1 to Port 2, and incoming Port 2 signals to
Port 3.So fiber optic circulators act as signal routers, transmitting light from an input fiber to an output fiber, but directing light that returns along that output fiber to a third port. They perform a similar function as an isolator, protecting the input fiber from return power, but also allowing the rejected light to be employed.
The fiber optic circulator utilizes proprietary designs and metal bonding micro optics packaging. It’s a compact, high performance component, with high isolation, low insertion loss, low PDL, high stability and reliability. It is widely used in combination with fiber gratings and other reflective components in DWDM systems, wavelength add/drop, high speed systems, bi-direction communication systems, dispersion compensation, EDFA application and optical time domain reflectometer (OTDR) measurements.
If you do not see a standard Optical Circulator that meets your needs, we welcome the opportunity to review your desired specification and quote a custom circulator. Requests for custom fiber pigtails, different wavelengths and handling power of operation or other specific needs will be readily addressed.
| Features | Applications |
| · Low Insertion Loss
· High Isolation · Low PDL · High Stability and Reliability · Cost Effective |
· DWDM Systems
· Optical Fiber Amplifier · Pump Laser Source · Fiber Optic Sensor · Test and Measurement · Instrumentation |
| Parameter | Unit | Values | |||
| Operating Wavelength | nm | 1310, 1550, C+L Band | 1940, 2000,2050,2100 | 1064 | |
| Configuration | – | Port 1 to Port 2 to Port 3 | |||
| Grade | – | P Grade | A Grade | P Grade | P Grade |
| Operating Wavelength Range | nm | λ±30 | λ±5 | ||
| Typical Peak Isolation | dB | 50 | 50 | 23 | 28 |
| Min. Isolation, λc, 23℃, all polarization states | dB | 40 | 40 | 16 | 22 |
| Typical Insertion Loss,23℃ | dB | 0.6 | 0.8 | 1.5 | 1.8 |
| Max. Insertion Loss,23℃ | dB | 0.8 | 1.0 | 2.2 | |
| Min. Return Loss | dB | 50 | 50 | 50 | 50 |
| Min. Cross Talk (dB) | dB | 50 | 40 | 45(Typ.50) | |
| Max. Polarization Mode Dispersion | ps | 0.1 | |||
| Max. Polarization Dependent Loss,23℃ | dB | 0.15 | 0.2 | ||
| Maximum Power Handling (total pass, continuous wave) | W | 0.3, 1, 2, 3, 5,10 | 0.3 | ||
| Max. Tensile Load | N | 5 | |||
| Fiber Type | – | SMF-28 fiber | SMF-28e or Nufern SM-1950 fiber | HI1060 fiber | |
| Operating Temperature | °C | -5~+70 | |||
| Storage Temperature | °C | -40~+85 | |||
| Dimensions | mm | Ø5.5 x L50, Ø5.5 x L38(New) | (L) 34x (W) 8.4x(H) 8.4 | ||
Above specifications are for device without connector.
- For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower. Power transmits through the connector less than 2W.
- For high power applications, we will use heat sink package, contact OPC PHOTONICS for details.
- For high-power applications, IL and ISO will be slightly worse due to the heat absorbed by the Faraday plate and the temperature rise. But they are all within a reasonable range. For more information, please contact OPC PHOTONICS.
Package Dimension
*Due to ongoing design improvements, the package size is subject to change. Please contact OPC PHOTONICS for confirmation.
Order information P/N: PIOC-①-②-③-④-⑤-⑥-⑦
When you inquire, please provide the correct P/N number according to our ordering information, and attach the appropriate description would be better. If need any connector, we do not recommend choosing a 250μm bare fiber pigtail.
| ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ |
| Port | Grade | Operating Wavelength | Power Handling | Fiber Diameter | Fiber Length | Connector |
| 3:3-port | P: P grade
A: A grade |
64:1064nm
13:1310nm 15:1550nm CL:C+L Band 1940:1940nm 2000:2000nm 2050:2050nm XX: Others |
L:<0.3W
1:1W 2:2W 3:3W 5:5W 10:10W |
25:250μm bare fiber
90:900μm Loose Fiber XX: Others |
05:0.5m
10:1.0m 15:1.5m XX: Others |
00: None
FP: FC/PC FA: FC/APC SA: SC/APC LA: LC/APC XX: Others |
Part Number Example #1: PIOC-3-P-13-L-90-10-LA
Description: 1310nm Polarization Insensitive Optical Circulator, P Grade, 300mW power handling, SMF-28 fiber, with 0.9mm OD loose tube, 1.0m length fiber pigtails, FC/APC connectors at all ports.
Part Number Example #2: PIOC-3-P-15-5-25-10-00
Description: 1550nm Polarization Insensitive Optical Circulator, P Grade, 5W power handling, SMF-28 fiber, with bare fiber, 1.0m length fiber pigtails, no connectors at all ports.
Part Number Example #3: PIOC-3-P-64-L-90-10-00
Description: 1064nm Polarization Insensitive Optical Circulator, P Grade, 0.3W power handling, HI1060 fiber, with 0.9mm OD loose tube, 1.0m length fiber pigtails, and no connectors at all ports.
Ordering Information for Custom Parts
If you need to customize other specifications, please provide detailed description for your requirement.
Request a quote
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