DESCRIPTION
This high-performance Polarization Maintaining (PM) Fiber Patch Cord is engineered for precision-critical optical systems. Using Panda-type PM fibers and carefully aligned connectors, it ensures stable signal integrity even under rigorous environmental changes.
Available in customized connector combinations such as FC/APC to LC/UPC or MPO to FC/UPC, and supporting both slow axis and fast axis alignment as per your project requirements, this patch cord is perfect for demanding polarization-sensitive systems such as interferometric sensing, fiber gyroscopes, and coherent communications.
- Custom Connectors: Supports FC, LC, SC, MPO/MTP, DIN, or hybrid patching based on client specs.
- Polarization Alignment: Slow-axis default with customer-selectable fast-axis alignment for sensitive setups.
- Precision Polish: Ultra-fine end-face polish ensures minimum signal reflection.
- Quality Testing: 100% factory tested for IL, RL, and ER under strict standards.
- Packaging: Cleanroom packed with traceable labeling and test report included.
| Parameter | Value |
| Fiber Type | Panda PM Fiber (e.g., PM1550, PM1310) |
| Connector Type | FC/APC, LC/UPC, SC/APC, MPO (custom available) |
| Jacket Diameter | φ0.9mm / 2.0mm / 3.0mm |
| Jacket Material | PVC / LSZH / OFNR / OFNP |
| Insertion Loss | ≤0.5dB (Typical ≤0.3dB) |
| Return Loss | ≥60dB (APC), ≥50dB (UPC) |
| Extinction Ratio (ER) | ≥20dB standard, ≥23dB typical；Higher ER available upon request for interferometric systems |
| Alignment Axis | Slow Axis (default) Fast Axis available based on system polarization design |
| Operating Wavelength | 850nm / 980nm / 1064nm / 1310nm / 1550nm / 1625nm |
| Cable Length | Customizable (e.g., 1m, 2m, 5m, 10m) |
| Operating Temperature | -40°C ~ +75°C |
| Storage Temperature | -55°C ~ +85°C |
Polarization Maintaining Patch Cords are indispensable in interferometric and coherent optical systems. Whether you’re conducting experiments in a lab, deploying sensitive gyroscope-based sensors, or ensuring polarization control in quantum communication links, these PM cables play a vital role. For example:
- In fiber optic sensors, maintaining polarization is critical to ensure accurate sensing signals.
- In optical coherence tomography (OCT) and quantum cryptography, the extinction ratio and axis alignment have a direct impact on performance and security.
- The FC and MPO options offer versatility for network deployment or laboratory testbeds.
Q1: What is a Polarization Maintaining (PM) patch cord?
A PM patch cord preserves the polarization state of light, making it ideal for interferometry, sensing, and coherent communication applications.
Q2: Which connector types are available for PM patch cords?
FC, LC, SC, MPO (custom combinations available) are supported, allowing compatibility with a wide range of optical equipment.
Q3: Can I customize the fiber type and core orientation?
Yes. You can select single-mode PM fibers with specified core orientation (slow/fast axis) to meet your system requirements.
Q4: What jacket materials are available for PM patch cords?
Common options include LSZH for indoor safety, PVC for general use, and OFNR/OFNP for riser or plenum applications.
Q5: How are PM patch cords tested?
Each cord undergoes strict insertion loss, return loss, and extinction ratio testing to ensure stable polarization and low optical loss.
Q6: Can the patch cords be customized in length, color, or labeling?
Yes. Length, jacket color, labeling, and connector key alignment can all be tailored for your project.
Q7: What are the typical applications for PM patch cords?
They are widely used in fiber optic sensing, coherent communication systems, interferometers, and laboratory experiments requiring polarization control.
Q8: What is the standard delivery time for PM patch cords?
Standard lengths may ship immediately, while fully customized cords usually require 5–10 working days depending on configuration.
