Polarization Maintaining FWDM Devices 1290nm–1500nm 1524nm–1650nm For ROADM / CATV / CWDM

This PM FWDM device is a high-performance, passive 2-port or 3-port wavelength division multiplexing component designed based on polarization-maintaining (PM) fiber. It is primarily utilized for the multiplexing and demultiplexing of signals at different wavelengths within a single optical fiber, while simultaneously addressing requirements for both wavelength management and polarization preservation. A typical channel configuration features a "Pass" port transmitting wavelengths in the 1290–1500 nm range, and a "Cut" port operating in the 1524–1650 nm range, with compatibility extending to the 1260–1280 nm band. This makes it well-suited for application scenarios such as long-wave Gigabit Ethernet, access networks, and multi-service transport systems.

*For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower, and ER will be 2dB lower.

• Supports 2-port or 3-port Polarization-Maintaining (PM) FWDM configurations
• Pass-band wavelength range: 1290–1500 nm
• Cut-band wavelength range: 1524–1650 nm (compatible with 1260–1280 nm)
• Utilizes Corning PM13-U25D Polarization-Maintaining Fiber
• Insertion Loss (Pass-band): ≤1.0 dB
• Isolation (Pass-band): ≥30 dB
• Pass-band Ripple: ≤0.4 dB
• Typical Extinction Ratio: ~18 dB; Return Loss: ≥50 dB
• Maximum Optical Power Handling: ~300 mW
• Operating Temperature: 0–70°C; Storage Temperature: -40–85°C
• Compact stainless steel tube package; dimensions: approx. Φ5.5 * 38 mm
• Customization available for pigtail length, jacket type, and connectors

• ROADM Nodes
• CATV Optical Transmission Systems
• CWDM Systems
• PON Access Networks
• Long-Wavelength Gigabit Optical Modules
• Industrial Control Optical Links
• Dedicated PM Lines and Scientific Research Access Systems
• OEM Optical Communication Modules