WDM Filter FWDM
WDM filters are core components of wavelength-division multiplexing systems, acting as traffic controllers in high-speed fiber networks by combining and separating optical signals according to wavelength. Using optical interference in specific dielectric coatings, they multiplex wavelengths such as 1310nm, 1490nm, and 1550nm into a single fiber or demultiplex them into separate channels at the receiving end. This enables simultaneous transmission of multiple signals over one fiber, greatly increasing communications capacity and transmission efficiency.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Operating Wavelength | 1260～1620 nm |
| Transmission Bandwidth | Customized to Customer Requirements |
| Reflection Bandwidth | Customized to Customer Requirements |
| Transmission Insertion Loss | ≤0.6 dB |
| Reflection Insertion Loss | ≤0.45 dB |
| Adjacent Channel Isolation [Transmission Isolation] | ≥30 (Transmission Isolation) |
| Reflection Channel Isolation | ≥15 dB |
| Passband Flatness | ≤0.3 dB |
| Polarization Dependent Loss | ≤0.15 dB |
| Return Loss | ≥50 dB |
| Directivity | ≥50 dB |
| Optical Power-Handling Capability | ≤500 mW |
| Fiber Type | G657 A1 or G657 A2 |
| Operating Temperature | -10～+70 ℃ |
| Storage Temperature | -40～+70 ℃ |
| Package Dimensions (Steel Tube) | Φ5.5×L38 mm |
Datasheet
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Supplier Information
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