1x2 Fiber Optic Coupler 50/50 1310nm Polarization Maintaining Fiber Coupler Low Insertion Loss

  This product is a 1*2 PM Filter Coupler 50/50 (1*2 filter-type polarization-maintaining fiber coupler, 50/50 beam splitter), operating at a wavelength of 1310nm, bandwidth ±30nm. It utilizes PM13-U25D panda-type polarization-maintaining fiber and a filtering structure to split one input beam into two equally distributed 50/50 output beams while maintaining polarization characteristics. 

• Low Insertion Loss, Ample System Margin
    
• High Extinction Ratio, Strong Polarization Maintenance
  
  
• High Return Loss and High Directivity, Suppressing Reflection and Crosstalk
   
• Good Power Handling Capability and Environmental Adaptability
    
• Clear Selection Logic, Compatible with Multiple Specifications and Expansion
    
• Predictable Performance Changes with Connectors, Facilitating Link Design
    

• EDFA (Erbium-Doped Fiber Amplifier)
• Fiber Optic Instrument
• Power Monitoring (Online Power Monitoring / Tap Detection)
• Fiber Sensor

FAQ

Q1: What are the operating wavelength and splitting ratio of this PM Filter Coupler?

A: The operating wavelength of this product is 1310nm, and the operating bandwidth is ±30nm. The splitting ratio in the example model is 95/5, and different splitting ratios such as 50/50, 90/10, 99/1, and 95/5 are also supported in the ordering information.

Q2: What are the main performance advantages of this product?

A: This product features low insertion loss, high extinction ratio, high isolation, high stability, and high reliability. Its insertion loss is ≤3.6dB, extinction ratio is ≥20dB, return loss is ≥50dB, directivity is ≥50dB, and the maximum power handling capacity is 300mW.

Q3: Does this 1×2 PM Filter Coupler support customization?

A: Customization is supported. Customers can choose the operating wavelength, splitting ratio, package size, fiber sheath, fiber length, and connector type according to their needs. The standard configuration uses PM 13-U25D polarization-maintaining fiber with a fiber length of 1.0±0.1m. Connectors can be FC/APC or other custom specifications. By default, the connector key is aligned with the slow axis and blocked on the fast axis.