1550nm Polarization Maintaining Optical Circulator
High Extinction Ratio 1550nm Polarization Maintaining Optical Circulator
Basic Information:
The polarization-maintaining optical circulator (high extinction ratio) is a passive component based on the Faraday effect, transmitting light signals from one port to the next sequential port with low loss, but at the same time blocking any light transmission to the previous port. By using polarization-maintaining fiber (PMF), it is able to maintain the same state of polarization (SOP) of the light signals.
The 3-port polarization-maintaining optical circulator (high extinction ratio) can work on both slow-axis and fast-axis linear polarization, or just transmit one principal polarization state in only one direction and block the orthogonal state in both directions.
Optical Isolator Benefit&Features:
- Excellent Thermal Characteristics
- Effective in all Optical Wavelengths
- Single-stage isolator with high isolation
- Ultra-low insertion loss (0.5dB) and PDL
- Low Insertion Loss
- High Isolation & Extinction Ratio
- High Reliability & Stability

Certification&Compliance:
- GR-1209-CORE Requirements for passive optic components
- GR-1221-CORE Reliability assurance requirements for passive optical components
- GR-326-CORE Requirements for single-mode optical connector and jumpers assemblies
- TIA-604 Fiber optic connector interpretability standard
- ROHS Directive on the restriction of hazardous substances
Specfication&Technoloy Parameters:
| Parameter | Unit | Single Stage | Dual Stage | ||||
| Grade | —— | P | A | P | A | ||
| Wavelength | nm | C-band:1528~1564nm;1310±15nm | |||||
| Insertion Loss(dB)(max.)(23℃) | dB | 0.5 | 0.6 | 0.6 | 0.7 | ||
| TDL | dB | 0.1 | 0.15 | 0.1 | 0.15 | ||
| Isolation (min.)(23℃) | dB | 30 | 30 | 46 | 46 | ||
| PDL | dB | 0.1 | 0.15 | 0.1 | 0.15 | ||
| PMD | ps | 0.05 | 0.05 | 0.05 | 0.05 | ||
| In/Out Return Loss | dB | 60/60 | 60/55 | 60/60 | 60/60 | ||
| Maximum Optical Power | MW | 500 | |||||
| Operating Temperature | ℃ | -10~+65 | |||||
| Storage temperature | ℃ | -40~+85 | |||||
| Package | nm | Φ52x32 | |||||
Ordering Information:
| ISO- | X- | XX- | X- | XX- | XX- | XX- | M | |
| PID:Polarization Independent,dual-stage PISL: Low polarization mode dispersion |
31:1310nm 55:1550nm |
P:P grade A:A grade |
09:0.9mm 025:0.25mm | 0.5:0.5m 1.0:1.0m | FC:FC/UPC FA:FC/APC 0:no connector |
M: Φ52x32mm | ||
| Type | Wavelength | Grade | Fiber Dia. | Fiber Length | Connector | Packing size | ||
Optical Isolator Application:
- Fiber optic amplifiers
- Fiber optic ring lasers
- Fiber Sensor
- Fiber Instrument
Geehe Factory Service:
- Provide the highest quality of products
- Continuous improvement; accepting new challenges
- Innovating new processes, and creating new products for the benefit of our customers
- Consultative service and strive to ensure a positive and productive experience
- Efficient use of all transportation modes and transit times
- Greater visibility and real-time information
- Free samples for testing
- Factory inspection experience
- Fast delivery for all customer orders
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