Shenzhen Optico Communication Co., Ltd. is one of the most credible manufacturers and suppliers of 1550nm polarization maintaining patch cord in China. Please feel free to wholesale high quality customized products at competitive price form our factory. If you have any enquiry about free sample, please feel free to email us.
Product Profile
- This 1550nm Polarization Maintaining Patch Cord utilizes panda-type high-birefringence special fiber. Relying on an internal stress structure to form an independent polarization axis, it fundamentally suppresses polarization mode crosstalk. Combined with precision alignment and low-stress polishing processes, it boasts outstanding performance in terms of high extinction ratio, low insertion loss, and stable polarization state.
- Ordinary fiber optic patch cords lack polarization locking capability, allowing the polarization direction of the optical signal to drift randomly. The 1550nm Polarization Maintaining Patch Cord, however, can strictly maintain the polarization state of light, exhibiting minimal interference from cable bending and environmental temperature changes. Its manufacturing precision and polarization control performance are far superior to conventional fiber optic patch cords.
- This Polarization Maintaining Patch Cord supports multiple connector specifications, including FC, SC, and LC, and covers customizable common wavelengths such as 780nm, 850nm, 980nm, 1064nm, 1310nm, and 1550nm. It is widely applicable to high-end scenarios with stringent polarization purity requirements, such as fiber optic sensing, coherent optical communication, lidar, precision optical instruments, quantum communication, and laboratory scientific research testing.
Product Specifications
| Parameter | Single Mode Fiber | |||
| Connector Type |
UPC |
APC | ||
| Operating wavelength | 780,850,980,1064,1310,1550 | |||
| Grade | P | A | P | A |
|
Insertion Loss(dB) |
≤0.3 | ≤0.4 | ≤0.4 | ≤0.5 |
| Extinction ratio(dB) | ≥25 | ≥23 | ≥25 | ≥23 |
| Return Loss(dB) | ≥55 | ≥50 | ≥60 | ≥55 |
| Repeatability(dB) | ≤0.1 | |||
| Changeability(dB) | ≤0.2 | |||
| durability(dB) | ≥1000 | |||
| Fiber Type |
PM780,PM850,PM980,PM1310,PM1550 |
|||
| Storage Temperature | -40℃ ~ +85℃ | |||
- The specifications are w/o connector.
- For dievices with connectors, 0.3dB higher for IL, 5dB lower for RL and 2dB lower for ER.
- For device with connector, key aligned to slow axis.
Product features
Excellent polarization retention performance
Using dedicated polarization-maintaining fiber, polarization locking is stable, which can effectively control polarization-related loss and ensure stable optical signal polarization transmission.
Sturdy and durable material
Made with high-quality optical fiber and sheath materials, it is resistant to bending and aging. The connectors are resistant to repeated plugging and unplugging, have stable mechanical properties, and a long service life.

Low insertion loss
high retracement loss
It exhibits excellent optical parameters, with low insertion loss, high return loss, low optical path attenuation, low reflection interference, and more stable transmission.
Multiple specifications and high compatibility
It supports multiple specifications for connector type, cable length, and axial structure, adapting to various equipment interfaces and wiring scenarios, and has a wide range of applications.
Product Applications

Quantum Communication Networks

Fiber-Optic Gyroscopes

Aerospace Applications
certificates
CE

CPR

ISO
RoHS
Ordering Information
- We support full-specification customization of polarization maintaining fiber optic patch cords, with various connectors, wavelengths, and lengths available upon request. We can provide different extinction ratio levels and non-standard engineering customization solutions.
- Factory direct supply, ample stock, and controllable delivery time. We support sample trials and bulk orders. Our professional technical team can provide selection matching and technical consultation. Welcome to inquire, place orders, and discuss cooperation at any time.

| Product Description | operating Wavelength | Grade | Axis Alignment | Pigtail Type | Input Connector Type |
Output Connector Type |
Fiber Length |
| P=Polarization | 78=780nm | P=Perfect | S=Slow Axis | 0=250μm | 0=None | 0=None | 005=0.5m |
| M=Maintaining | 85=850nm | A=Grade A | A=Fast Axis | 1=900μm | 1=FC/UFC | 1=FC/UFC | 010=1.0m |
| F=Fiber | 98=980nm | 2=2mm | 2=FC/APC | 2=FC/APC | 020=2.0m | ||
| P=Patch-cord | 06=1060nm | 3=3mm | 3=SC/UPC | 3=SC/UPC | 030=3.0m | ||
|
13=1310nm |
4=SC/APC | 4=SC/APC | 100=10m | ||||
| 15=1550nm | 5=LC/UPC | 5=LC/UPC | 150=15m | ||||
| 6=LC/APC | 6=LC/APC | 200=20m |
FAQ
Q: What is a PM polarization-maintaining fiber optic patch cord?
A: PM polarization-maintaining fiber optic patch cords are special fiber optic connectors that can maintain stable transmission of optical polarization states. They are widely used in high-precision applications such as precision optical communication, laser equipment, and optical sensing.
Q: Which connector types are available for PM patch cords?
A: Commonly used interfaces include FC, SC, LC, and ST, but custom interfaces such as MPO/MTP can also be provided to adapt to various optical devices and instrument ports.
Q: Can polarization-maintaining fiber optic patch cords be used with ordinary single-mode fiber optic cables?
A: The physical interface can be plugged in, but it cannot maintain polarization and will lose polarization performance; for professional and precision applications, it is recommended to use polarization-maintaining devices throughout the entire process.
Q: What are the differences between polarization-maintaining fiber and ordinary single-mode fiber?
A: Ordinary single-mode optical fiber cannot maintain the polarization state of light; polarization-maintaining fiber can stably lock the polarization direction, making it suitable for scenarios with extremely high requirements for optical paths, such as coherent communication, lasers, and precision testing.
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