The 1030nm polarization maintaining optical circulator is a compact, high performance lightwave component that routes incoming signals from Port 1 to Port 2, and incoming Port 2 signals to Port 3 (for 4 port, and incoming Port 3 signals to Port 4).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.
DK Photonics offers a large selection of polarization insensitive or polarization maintaining 3-port/4-port optical circulator. These devices can handle powers rang from 300mW to 20W, and have center operating wavelengths ranging from 850nm to 1650nm.
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 |
| · Compact size
· High Isolation · High Extinction Ratio · Low Cost · High Stability & Reliability |
· Fiber Amplifiers
· Fiber Sensor · Test and Measurement · Coherent Detecting |
Performance Specifications
| Parameter | Unit | Values | |||||||||||
| Axis | – | Fast axis blocked | |||||||||||
| Center Wavelength | nm | 1030 | 1064 | 1310 or 1550 | 1940, 2000, 2050, | 1064 | 1310 or 1550 | ||||||
| Port | – | 3 | 4 | ||||||||||
| Isolation level | – | Type A | Type A | Type B | Type A | Type B | Type A | Type A | Type B | Type A | |||
| Operating Wavelength Range | nm | ± 5 | ± 5 | ± 5 | ± 30 | ± 20 | ±30 | ± 5 | ± 5 | ± 30 | |||
| Min. Isolation at 23℃ | dB | 20 | 35 | 22 | 40 | 20 | 16 | 35 | 20 | 40 | |||
| Typ. Isolation at 23℃ | dB | 23 | 40 | 30 | 46 | 30 | / | 40 | 28 | 50 | |||
| Peak Isolation at 23℃ | dB | / | 45 | 38 | 52 | 40 | / | 45 | 35 | 55 | |||
| Typ. Insertion Loss at 23℃ | dB | 3.5 | 3.0 | 1.8 | 0.7 | 0.6 | 1.2 | 3.8 | 2.2 | 0.8 | |||
| Max. Insertion Loss at 23℃ | dB | 3.8 | 3.5 | 2.2 | 0.9 | 0.8 | 1.5 | 4.2 | 2.8 | 1.1 | |||
| Min. Extinction Ratio at 23℃ | dB | 20 | 20 | 20 | 20 | 20 | 18 | 20 | 20 | 20 | |||
| Min. Return Loss | dB | 50 | |||||||||||
| Min. Cross Talk | dB | 50 | 40 | 50 | |||||||||
| Max. Power Handling (total input, continuous wave) | W | 0.05 | 0.15 | 0.3 | 0.5, 1, 3, 5 | 0.1 | 0.3 | 0.5, 1, 3, 5 | |||||
| Max. Tensile Load | N | 5 | |||||||||||
| Fiber Type | – | PM980 Panda Fiber | PM Panda Fiber | PM1300/1550 Panda Fiber | PM1550 or Nufern PM1950, PM-GDF-10/130-2000-M fiber | PM Panda Fiber | |||||||
| Operating Temperature | ℃ | -5 to +70 | |||||||||||
| Storage Temperature | ℃ | -40 to +85 | |||||||||||
| Package Dimensions | mm | Ø5.5 x L35 | Power<2W: Ø 5.5xL35mm
Power>2W: |
Ø5.5 x L35 | |||||||||
- Above specifications are for device without connector.
- For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower and ER will be 2dB lower. The default connector key is aligned to slow axis. Power transmits through the connector less than 2W.
- (1) For 1030nm Circulator, due to high IL, it is recommended to use average power of <100mW, If you need higher handle power, lower IL, please look for our 1030nm High power Circulator.
(2) For this 1064nm Circulator, Due to high IL, it is recommended to use average power of <300mW for Type B and <100mW for Type A. If you need higher handle power, please look for our 1064nm High power Circulator.If there is pulse application, please be sure to inform us of pulse energy and peak power
- For high power applications, we will use heat sink package, contact DK 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 DKP.
Package Dimension
The transmission optical path: 1 -> 2, 2 -> 3
The transmission optical path: Type A: 1 -> 2, 2 -> 3, 3 -> 4; Type B: 1 -> 2, 2 -> 3, 3 -> 4;4->1
*Due to ongoing design improvements, the package size is subject to change. Please contact DK Photonics for confirmation.
Order information P/N: PMOC-①-②-③-④-⑤-⑥-⑦-⑧-⑨
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 | ⑧ | ⑨ |
| Port | Operating Wavelength | Axis | Isolation level | Power Handling | Fiber type | Pigtails Diameter | Fiber Length | Connector |
| 3:3-port
4:4-port |
30:1030nm
64:1064nm 13:1310nm 15:1550nm 1940:1940nm 2000:2000nm 2050:2050nm XX: Others |
F: Fast axis blocked | A: Type A
B: Type B |
L:<0.5W
1:1W 3:3W 5:5W XX: Others |
PM980:PM980
P15: PM1550 P19: PM1950 XX: Others |
25:250μm bare fiber
90:900μm Loose tube XX: Others |
05:0.5m
10:1.0m 15:1.5m XX: Others |
00: None
FP: FC/PC FA: FC/APC XX: Others |
Part Number Example #1: PMOC-3-15-F-A-L-P15-90-10-FA
Description: 1550nm 3-port Polarization Maintaining Optical Circulator, 300mW, Fast axis blocked, Type A, with 0.9mm OD loose tube, 1.0m length fiber and FC/APC connectors at all ports.
Part Number Example #2: PMOC-3-64-F-B-L-PM980-25-10-00
Description: 1064nm 3-port Polarization Maintaining Optical Circulator, 300mW, Fast axis blocked, Type B, with PM980 bare fiber, 1.0m length fiber and no connector at all ports.
Part Number Example #3: PMOC-4-15-F-A-L-P15-90-08-FA
Description: 1550nm 4-port Polarization Maintaining Optical Circulator, 0.5W power, Fast axis blocked, Type A, with 0.9mm OD loose tube, 0.8m length PM1550 fiber and FC/APC 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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