1. Product Title

PM Fiber Coupler – Polarization Maintaining Optical Coupler for 780–1550 nm Applications

2. Product Overview

GracyFiber PM Fiber Coupler is a fused polarization-maintaining optical component designed for precise optical power splitting while preserving polarization stability. Available in 1×2 and 2×2 configurations, this PM coupler supports a broad wavelength range from 780 nm to 1550 nm and provides multiple splitting ratio options for different optical system requirements.

3. Key Features

• Polarization-maintaining fused optical coupler design
• Available in 1×2 and 2×2 configurations
• Wide wavelength coverage from 780 nm to 1550 nm
• Precise optical power splitting
• Maintains polarization stability for polarization-sensitive systems
• Multiple splitting ratios available
• Low excess loss
• High polarization extinction
• High power handling capability
• Environmental stability

The supplied product information identifies the main features as high power handling, environmental stability, multiple splitting ratios, low excess loss, and high polarization extinction.

4. Applications

• Quantum Optics & Quantum Communication
• Fiber Laser & Amplifier Systems
• Telecom & Optical Communication
• Interferometry & Precision Sensing
• Optical Test & Measurement
• LiDAR & Free-Space Optical Communication (FSO)

These applications are listed in the supplied PM Fiber Coupler documentation.

5. FAQ

What is a PM Fiber Coupler?

A PM Fiber Coupler is a polarization-maintaining fused optical component designed to split or combine optical power while maintaining the polarization characteristics of the transmitted light.

What configurations are available for the PM Fiber Coupler?

The documented configurations include:

• 1×2
• 2×2

What wavelength range does the PM Fiber Coupler support?

The supplied product information specifies a wavelength range from:

780 nm to 1550 nm

Can different splitting ratios be provided?

Yes. The product documentation specifies that multiple splitting ratios are available. Specific available ratios should be confirmed according to the required application and configuration.

What applications require polarization-maintaining coupling?

PM Fiber Couplers are typically used in systems where maintaining polarization stability is important, including quantum optics, fiber lasers, sensing systems, and optical communication applications.

6. Technical Specifications

The supplied documents confirm the configuration, wavelength range, polarization-maintaining function, and optical characteristics. Specific numerical specifications such as insertion loss, excess loss, extinction ratio, and package dimensions are not provided.

7. Configuration & Customization Options

Available Options

Configuration

• 1×2 PM Fiber Coupler
• 2×2 PM Fiber Coupler

Wavelength Range

• 780 nm
• 850 nm
• 980 nm
• 1060 nm
• 1310 nm
• 1550 nm

Splitting Ratio

Available:

• Multiple splitting ratios

Specific ratios:

• [Need confirmation]

Fiber Type

• Polarization Maintaining Fiber

8. Detailed Product Description

GracyFiber PM Fiber Coupler is a fused polarization-maintaining optical component developed for applications requiring accurate optical power distribution while maintaining polarization stability.

In polarization-sensitive optical systems, conventional optical couplers may introduce polarization variation that affects system performance. The PM Fiber Coupler is designed to address this requirement by using polarization-maintaining fiber technology, allowing optical power splitting while preserving the polarization characteristics of the transmitted signals.

The product family includes 1×2 and 2×2 configurations, providing flexibility for different optical architectures. The 1×2 configuration can be used for optical signal splitting, while the 2×2 configuration can support applications requiring multiple optical paths.

The documented wavelength range covers 780 nm to 1550 nm, allowing the PM Fiber Coupler to support various photonics applications from visible/near-infrared systems through telecom wavelength bands.

Key optical characteristics include low excess loss and high polarization extinction, which are important parameters in systems where optical power efficiency and polarization control are critical.

The component is designed for demanding environments requiring stable optical performance, including quantum optical systems, fiber lasers, optical communication networks, sensing platforms, and precision optical measurement equipment.

By combining polarization-maintaining performance with flexible splitting configurations, GracyFiber PM Fiber Couplers provide an optical interface solution for engineers designing advanced photonic systems.

9. Application Scenario

Application 1 — Quantum Optics and Quantum Communication

Quantum optical systems often require precise control of optical power distribution and polarization states.

The PM Fiber Coupler provides polarization-maintaining optical splitting to support stable optical paths in quantum experiments and communication systems.

Application 2 — Fiber Laser and Amplifier Systems

Fiber lasers and amplifiers require reliable optical components capable of handling optical power while maintaining polarization performance.

The PM Fiber Coupler supports these systems through high power handling capability and polarization-maintaining operation.

Application 3 — Precision Sensing and Interferometry

Interferometric sensing systems depend on stable optical phase and polarization characteristics.

The PM Fiber Coupler provides controlled optical power distribution for sensing architectures where polarization stability is important.

10. Why GracyFiber

GracyFiber provides passive optical components for optical communication, photonics, and advanced fiber-optic systems.

Relevant product capabilities include:

• PM Fiber Components
• PM Fiber Couplers
• PM WDM Components
• Fiber Arrays
• Lensed Fiber Arrays
• MPO/MTP Interconnect Products
• WDM / CWDM / DWDM Components
• PLC Splitters
• FBT Couplers

For PM Fiber Coupler applications, GracyFiber provides configurable optical coupling solutions including different configurations and splitting ratio options according to system requirements.

11. Related Products

12. Call to Action

Need a polarization-maintaining coupler for your photonics, laser, sensing, or communication system?

Send GracyFiber your requirements:

• Configuration (1×2 / 2×2)
• Operating wavelength
• Splitting ratio
• Fiber type
• Polarization requirements
• Optical power level
• Fiber length
• Connector requirements
• Application environment

Our engineering team can help evaluate the suitable PM Fiber Coupler configuration for your application.