100G & 200GHz DWDM Filter
Brief Description
A DWDM filter is a passive optical component primarily used for multiplexing (combining) or demultiplexing (separating) optical signals of different wavelengths, enabling the simultaneous transmission of multiple high-speed data streams over a single optical fiber. It is a core component of Wavelength Division Multiplexing systems.
A DWDM filter typically consists of three ports: Common Port, Pass Port, and Reflection Port.
When a mixed optical signal enters the Common Port, if the signal contains a wavelength corresponding to the filter's operating range, the specific wavelength will be output from the Pass Port (filtering), while the remaining wavelengths are reflected out from the Reflection Port. This process is known as demultiplexing (splitting). Conversely, when light enters from the Pass Port and Reflection Port, both beams are combined and output from the Common Port — a process known as multiplexing (combining).
Fholink's 100GHz & 200GHz DWDM filters are based on mature multi-cavity dielectric thin-film technology for optical filtering. They offer excellent wavelength stability and are hermetically sealed in a steel tube package, ensuring high reliability.
Features
- Low Insertion Loss
- High Isolation
- High Stability and Reliability
Applications
- DWDM Equipment Manufacturing
- System Integration
- University and Scientific Research
- Experimental and Production Testing
Technical Specifications
| 100GHz & 200GHz DWDM滤波器 | ||||
| Parameter | Unit | datea | ||
| Channel Spacing | GHz | 100 | 200 | |
| Wavelength Range | / | C- or L-band ITU channels 186.6 to 196.1 THz | ||
| Typical Wavelength(s) | / | C21-C60；H21-H60 | ||
| Passband | nm | ±0.11 | ±0.25 | |
| Passband Ripple | Pass Port | dB | ≤0.40 | |
| Reflection Port | dB | ≤0.20 | ||
| Insertion Loss | Pass Port | dB | ≤1 | |
| Reflection Port | dB | ≤0.40 | ||
| Isolation | Pass Port | dB | ≥30 | |
| Reflection Port | dB | ≥12 | ||
| Polarization Dependent Loss (PDL) | dB | ≤0.2 | ||
| Polarization Mode Dispersion (PMD) | ps | ≤0.2 | ||
| Directivity | dB | ≥50 | ||
| Return Loss | dB | ≥45 | ||
| Rated Optical Power | mW | 500(Standard Model), Customizable with Other High-Power Models | ||
| Tensile Load | N | ≥5 | ||
| Operating Temperature | 0C | -5 to 70 | ||
| Storage Temperature | 0C | -40 to +85 | ||
| Fiber Type | / | SMF-28e | ||
| Fiber Length | m | Default: 1 m; Customizable: 0.5 / 1 / 1.5 / 2 m | ||
| Package Dimensions | mm | ∅5.5 × 34 mm (for bare fiber); Customizable | ||
| ∅5.5 × 38 mm (for 900 µm loose tube); Customizable | ||||
| Connector Type | / | Default: FC/APC; Customizable: LC/UPC, SC/APC, etc. | ||
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ꁇBackbone network
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ꁇMan/private network
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ꁇOptical Amplifier
