PM Patch Cord
High Return Loss High Extinction Ratio
High Stability and Reliability
Applications:
Test Instrument
Fiber Sensors
Product Development
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Product Description
Product Description
The PM Patch Cord is a specialized optical cable designed for maintaining polarization state in high-precision applications. Constructed with polarization-maintaining (PM) fiber (e.g., PANDA or Bow-Tie type), it ensures low polarization crosstalk and high return loss. The cord features industry-standard connectors (FC/APC, SC/APC) and is available in lengths from 1 m to 100 m. Its rugged jacket (LSZH or PVC) provides protection against environmental factors, while the bend-insensitive design minimizes signal degradation.
Features
Polarization Performance: Polarization extinction ratio (PER) ≥25 dB and crosstalk ≤-25 dB.
Low Loss: Insertion loss ≤0.3 dB and return loss ≥55 dB.
Durability: Jacket withstands temperatures from -40°C to 85°C and resists UV radiation.
Flexibility: Bend radius as low as 10 mm without performance loss.
Customizable: Available with various connector types and lengths.
Applications
Fiber Optic Sensors: Used in interferometric sensors for structural health monitoring.
Telecom Networks: Ensures polarization stability in long-haul transmission links.
Laser Systems: Connects PM components in fiber laser setups.
Research Labs: Enables precise optical alignment in spectroscopy and metrology.
Medical Equipment: Critical for polarization-sensitive imaging systems.
Faq
Q: How do I test polarization crosstalk?
A: Use a polarization-maintaining light source and a polarization analyzer.
Q: Can it be used with single-mode fibers?
A: No, it is specifically designed for PM fibers.
Q: What is the maximum tensile strength?
A: Up to 10 N for short-term handling.
Q: Is it suitable for outdoor use?
A: Yes, with LSZH jacket for outdoor environments.
Q: What is the typical delivery time?
A: 5–7 business days for standard configurations.
| Parameter | Spec | Unit | ||||||||
| Center Wavelength | 2000 | 1150 | 1130 | 1064 | 980 | 850 | 780 | nm | ||
| Operating Wavelength Range | ±50 | ±50 | ±50 | ±30 | ±10 | ±10 | ±10 | nm | ||
| Typical Insert loss@23℃ | 0.8 | 0.3 | 0.3 | 0.5 | 0.6 | 0.6 | 0.6 | dB | ||
| Max.Insertion Loss @23℃ | 1.0 | 0.5 | 0.5 | 0.7 | 0.8 | 0.8 | 0.8 | dB | ||
| Min.Return Loss | 50 | 50 | 50 | 50 | 50 | 50 | 50 | dB | ||
| Typical Extinction Ratio @23℃ | 22 | 30 | 30 | 30 | 30 | 28 | 28 | dB | ||
| Min.Extinction Ratio @23℃ | 20 | 28 | 28 | 28 | 28 | 25 | 25 | dB | ||
| Input&Output Fiber Type | SM→SM or SM→PM | / | ||||||||
| Max.Optical Power(CW) | 300 | mW | ||||||||
| Max.Tensile Load | 5 | N | ||||||||
| Operating temperature | -5~+70 | ℃ | ||||||||
| Storage temperature | -40~+85 | ℃ | ||||||||
