Panda PM (Polarization Maintaining) fiber is designed with high birefringence, low attenuation, and polarization maintenance. PM fiber optic patch cord is built with Panda PM fiber and connected using high-quality connectors. It is ideal for high-speed telecommunications and polarization-sensitive fiber optic systems to maintain the polarization of the light signal as it travels through the fiber. This article will mainly introduce PM fiber patch cords.
What is PM Fiber Patch Cord?
PM fiber patch cord, or PM fiber patch cable/ fiber jumper, is manufactured from panda PM fiber and high-quality connectors. It consists of a fixed length of PM single-mode fiber cable with connectors installed on both ends. PM fiber patch cord is available with connector types LC/UPC, SC/UPC, FC/PC, FC/APC, hybrid FC/PC to FC/APC, and 250µm bare fiber, 900µm buffered fiber, or 3mm loose cables.
Polarization Axis
The fast or slow axis of the fiber is aligned with the connector key. Fast axis alignment X - the connecting line formed by the centers of the two stress regions, and the fiber core is perpendicular to the center line of the positioning key. Slow axis alignment Y - the connecting line formed by the centers of the two stress regions, and the fiber core is parallel to the center line of the positioning key. The polarization direction of most polarized light source devices is also along this direction.
Specified angle O (Other) - the angle between the connecting line formed by the center of the stress zone and the center of the fiber core, and the center line of the positioning key is specified by the user.
How Does the PM Fiber Patch Cord Work?
PM fiber patch cord is based on a high-precision butt-style connection technique. The PM axis orientation is maintained using male connectors with a positioning key and a bulkhead female receptacle with a tightly toleranced keyway, guaranteeing good repeatability in extinction ratios and insertion losses.
PM fiber patch cord maintains the coupling alignment of two polarization modes by precise connector keys. It can transmit a polarized light signal. Capable of realizing the high-precision measurement of a physical quantity, the PM fiber patch cord can effectively ensure the direction of linear polarization unchanged and improve the coherent signal-to-noise ratio.
Features and Benefits
PM fiber patch cord provides the following features and benefits:
1. Low insertion loss
2. High extinction ratio and return loss
3. High precision and exchangeability
4. High reliability and stability
5. Wide/narrow connector key aligned to slow/fast axis
Applications
PM fiber patch cord is used in a fiber laser, fiber optic sensing, testing instruments, coherent optical transmission, high-speed telecommunications (10\40G), optical fiber amplifiers, beam splitters, interferometry, fiber optic gyroscopes (FOGs), research, biomedical, aerospace, etc.
Conclusion
PM fiber patch cord features a high-quality polish and extinction ratio, high return loss and reliability, and low insertion loss, making it the ideal solution for high-speed telecommunications.
Sun Telecom specializes in providing one-stop total fiber optic solutions for all fiber optic application industries worldwide. Contact us if you have any needs.
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