Polarization Maintaining Fiber Optic Coupler 1x2 2x2 FBT Splitter 1310nm 1550nm

1x2 2x2 Fused PM Fiber Coupler Polarization Maintaining FBT Splitter 1310 1550nm For EDFA Coherent Communication Power Monitoring Fiber Sensor

1. Product Overview

This product is a 1*2 / 2*2 Fused PM Fiber Standard Coupler, manufactured using panda-type polarization-maintaining fiber and FBT (fused tapered) technology. It can stably distribute optical power in two communication bands: 1310nm and 1550nm.

2. Key Features

• Supports 1310nm / 1550nm dual-wavelength applications
• Supports 1*2 and 2*2 port configurations
• Uses Panda fiber PM15-U25A polarization-maintaining fiber
• Operating bandwidth ±20nm
• Typical additional loss ≤0.8
• Polarization extinction ratio ≥18dB
• Return loss ≥50dB

3. Applications

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

FAQ

Q1: What operating wavelengths does this Fused PM Fiber Coupler support?

A: This product supports dual-wavelength operation at 1310nm & 1550nm, with an operating bandwidth of ±20nm, suitable for polarization-maintaining optical path splitting, monitoring, and testing applications in the communication band.

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

A: This product features low added loss, high return loss, high directivity, and good polarization maintenance capability. Its typical added loss is ≤0.8dB, polarization extinction ratio is ≥18dB, return loss is ≥50dB, directivity is ≥55dB, and maximum power handling is ≤0.5W.

Q3: Does this polarization-maintaining fused fiber coupler support customization?

A: Customization is supported. The product is available in 1*2 or 2*2 port configurations, supporting different splitting ratios such as 50/50, 20/80, 10/90, 5/95, and 1/99. The fiber length, package size, sheath type, and connector type can be customized. Connectors can be selected from FC/APC, FC/UPC, or other specifications; the default connector key alignment is with the slow axis.