2*2 PM Filter 850nm Fiber Coupler This coupler employs a thin-film filtering and fusion splicing process to achieve 50/50 power distribution of one or two input signals in the 850nm±20nm band while maintaining good polarization characteristics.

• Low Insertion Loss, Easier Link Budgeting

• Excellent Extinction Ratio, Stable Polarization Characteristics

  
  

• High Return Loss, Protecting Pre-amplifier Devices

  
  

• Dual-Axis Working Design, Catering to More Application Scenarios

• Good Power Handling Capacity and Environmental Adaptability

  
  

• EDFA
• Fiber Optic Instrument
• Coherent Communication
• Power Monitoring
• Fiber Sensor

FAQ

Q1: What are the operating wavelength and splitting ratio of this 2×2 PM Filter Coupler?

A: This product operates at a wavelength of 850nm, with a bandwidth of ±20nm and a standard splitting ratio of 50/50. It is suitable for dual-port polarization-maintaining optical path distribution applications in the 850nm band.

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

A: This product features low insertion loss, high extinction ratio, dual-axis operation capability, and high stability and reliability. Its insertion loss is ≤4.3dB, return loss is ≥45dB, and maximum power handling is ≤500mW, meeting the needs of medium-power polarization-maintaining optical systems.

Q3: Does this 850nm PM Filter Coupler support customization?

A: Customization is supported. Different operating wavelengths, splitting ratios, package sizes, fiber types, fiber lengths, and connector types can be selected according to requirements. The standard configuration uses PM780-HP Fiber 900μm loose tube, with an optical fiber length of 1.0±0.05m, FC/UPC connector, and supports Dual Axis working.