2μm Polarization Insensitive Optical Circulator
The 2000nm fiber optic 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.
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
· Low Polarization Dependent Loss · High Return Loss · High Isolation · High stability & Reliability |
· EDFA
· Testing Instrumentations · Transmitters · Fiber Laser · WDM System |
Performance Specifications
| Parameter | Unit | Values |
| Operating Wavelength | nm | 1940, 2000,2050,2100 |
| Bandwidth | Nm | ±30nm |
| Min. Isolation at 23℃,λc±30nm | dB | 20 |
| Max. Insertion Loss at 23℃,λc±30nm | dB | 1.5 |
| Max. Polarization Dependent Loss (only for SMF) | dB | 0.15 |
| Min. Return Loss | dB | 50 |
| Min. Crosstalk | dB | 40 |
| Max. Optical Power(CW) | W | 0.3, 0.5, 1, 2, 5 |
| Peak Power for ns Pulse | KW | 10 |
| Fiber Type | – | SMF-28e or Nufern SM-1950 fiber |
| Operating Temperature | ℃ | -5~+70 |
| Storage Temperature | ℃ | -40~+85 |
| Package Dimension | mm | Ø5.5 x L50 |
1.Above specification are for device without connector, and may change without notice.
2.IL is 0.3 dB higher and RL is 5 dB lower for each connector added.
3.The pass optical power is 2 W only for connector added.
Package Dimension
*Due to ongoing design improvements, the package size is subject to change. For high power applications, we will use heat sink package, contact DK Photonics for details. Please contact DK 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 | Operating Wavelength | Power Handling | Fiber type | Pigtails Diameter | Fiber Length | Connector |
| 3:3port | 1940:1940nm
2000:2000nm 2050:2050nm XX: Others |
L:<0.5W
1:1W 3:3W 5:5W |
S28: SMF-28e
S19: SM1950 |
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 SP: SC/PC LA: LC/APC XX: Others |
Part Number Example: PIOC-3-2000-L-S19-90-10-FA
Description: 2000nm Polarization Insensitive Optical Circulator, P Grade,0.3W power handling, SM1950 fiber, with 0.9mm OD loose tube,1.0m length fiber pigtails, 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.
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