Technical Brief: Polarization-Maintaining Fiber Patch Cords for Demanding Optical Systems
1. Product Overview
Feiyi OEO’s Polarization-Maintaining (PM) Fiber Patch Cords are engineered to provide robust, plug-and-play optical connectivity for polarization-sensitive systems. They are designed to preserve the state of polarization (SOP) of light with high fidelity, ensuring signal integrity and system stability from the component level to the system rack.
2. Key Specifications & Product Differentiation
Our PM Patch Cords are available in standard and high-performance grades to meet varied application demands.
| Feature / Parameter | Standard Series | High-Performance Series | Value Proposition |
|---|---|---|---|
| Typical Extinction Ratio (ER) | ≥ 25 dB | ≥ 30 dB | Higher ER ensures superior polarization maintenance, minimizing SOP drift. |
| Typical Insertion Loss (IL) | ≤ 0.2 dB | ≤ 0.15 dB | Lower IL maximizes optical power budget and system efficiency. |
| Typical Return Loss (RL) | ≥ 50 dB (UPC), ≥ 60 dB (APC) | ≥ 55 dB (UPC), ≥ 65 dB (APC) | Higher RL minimizes back reflections, protecting sensitive lasers and reducing noise. |
| Connector & Polish | FC/SC/LC, PC/UPC/APC | FC/SC/LC, UPC/APC | APC polish (8°) is critical for ultra-low reflection applications. |
| Operating Wavelength | 780 nm, 1060 nm, 1310 nm, 1550 nm, etc. | Custom wavelengths available | Coverage of major visible, telecom, and specialty bands. |
| Primary Application Fit | General lab use, prototyping | High-end sensing, quantum tech, precision laser systems | Delivers optimal performance for critical photonic links. |
3. Primary Application Scenarios
3.1 High-Precision Sensing & Measurement Systems
- Challenge: Fiber Optic Gyroscopes (FOG) and Distributed Acoustic Sensing (DAS) systems rely on stable SOP for accurate phase detection. Inconsistent patch cords can introduce polarization-induced signal fading and noise.
- Our Solution: Utilizing our High-Performance Series with APC connectors provides a stable, low-reflection optical path. This guarantees consistent signal quality, enhances the signal-to-noise ratio (SNR), and ensures long-term measurement accuracy and reliability in defense, aerospace, and energy applications.
3.2 Laser System Integration & Amplification
- Challenge: In MOPA configurations, pump combiners, and coherent beam combining, reflections and polarization instability can lead to laser efficiency loss, mode instability, or even component damage.
- Our Solution: Our patch cords offer low IL for minimal power loss and high RL to protect active components. The excellent polarization preservation ensures predictable output characteristics, making them ideal for industrial material processing, medical lasers, and scientific research systems.
3.3 R&D and Test Bench Setups
- Challenge: Building reliable and repeatable experimental optical paths for quantum communication, LiDAR, or integrated photonics testing requires components that do not introduce uncontrolled variables.
- Our Solution: As a fundamental building block, our PM patch cords provide a validated, standardized interface. They simplify system integration, reduce alignment time, and ensure that test results accurately reflect the Device Under Test (DUT), not the variability of the interconnect.
4. Why Choose Feiyi OEO?
- Reliability Validated by Data: Every patch cord undergoes 100% inspection for IL, RL, and ER using industry-standard test equipment. Our rigorous environmental stress screening (thermal cycling, damp heat) ensures performance under extreme conditions.
- End-to-End Control: We manage the entire process from PM fiber selection, precision connectorization, to final testing, ensuring exceptional batch-to-batch consistency and traceability.
- Customization & Speed: We support rapid customization of connector types, fiber lengths, jacket materials, and wavelength-specific optimizations to meet your exact system integration needs.
For detailed datasheets or technical consultation:
- Explore the PM Patch Cord Product Page: https://www.feiyi-oeo.com/product-category/polarization-maintaining/pm-fiber-patch-cord/
- Discover Our Full Solution Portfolio: https://www.feiyi-oeo.com
- Contact Our Engineering-Sales Team: lily@feiyi-oeo.com | +86 132 8606 2561
Feiyi OEO – Engineering Optical Reliability into Your Core.