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| Brand Name: | Gracyfiber |
| Model Number: | PMDWDM-04MO306PS-22(S) |
| MOQ: | 100pcs |
| Payment Terms: | T/T |
1. Product Overview
This product is a 4CH 200G O-band PM DWDM Module, designed for dense wavelength division multiplexing/demultiplexing of 4 wavelength channels within the 1260–1380 nm O-band. The standard channel center wavelengths are 1306.85 / 1309.14 / 1311.43 / 1312.58 nm, with a channel spacing of 200G (approximately 1.6 nm), and an effective passband of λc ±0.2 nm for each channel. The module uses PM13-U25D polarization-maintaining fiber, equipped with a 0.9 mm blue jacket and FC/APC connectors, operating along the slow axis. It features low insertion loss, high extinction ratio, high isolation, and high reliability, making it suitable for various O-band polarization-maintaining DWDM and broadband system integrations.
2. Product Advantages
Low Insertion Loss, Sufficient System Margin
The typical single-channel insertion loss is <1.8 dB, with ripple less than 0.5 dB, which helps maintain the overall network OSNR and power margin, making it suitable for medium to long-distance or multi-stage amplification scenarios.
High Extinction Ratio, Excellent Polarization Performance
Uses PM13-U25D panda-type polarization-maintaining fiber, with a channel extinction ratio >18 dB. The connector key aligns with the slow axis, enabling stable polarization transmission in polarization-maintaining systems, reducing polarization-related noise and measurement drift.
High Isolation, Extremely Low Crosstalk
Adjacent channel isolation >28 dB, non-adjacent channel isolation >40 dB, return loss >45 dB, directivity >50 dB, effectively suppressing crosstalk between channels and ports, ensuring system stability and signal quality.
Mature Structure, High Reliability
Utilizes mature DWDM filter technology and standard module packaging, with maximum optical power <300 mW, operating temperature -5 to +65 ℃, and storage temperature -40 to +85 ℃, meeting the engineering requirements for long-term online operation.
Easy to Deploy, Strong Compatibility
Equipped with standard 1.0±0.1 m, 0.9 mm blue-sheathed polarization-maintaining fiber and FC/APC connectors, convenient for direct installation on existing O-band platforms. It also supports customization of Mux/DEMUX type, initial center wavelength of channels, connector type, and other parameters, making it easy for customers to select according to project needs.
3. Product Features (Key Features)
| Parameters | 4CH Mux | |
|---|---|---|
| Operating Wavelength (nm) | 1260~1380 | |
| Channel spacing | 200G(Oband) | |
| Wavelength (nm) |
1306.85 (1306.65~1307.05) 1309.14 (1308.94~1309.34) 1311.43(1311.23~1311.63) 1312.58 (1312.38~1312.78) |
|
| Pass band (nm) | λC±0.2 | |
| Ripple (dB) | ＜0.5 | |
| Insertion Loss (dB) | < 1.8 | |
| Extinction Ratio (dB) | > 18 | |
| Isolation (dB) | Adjacent | > 28 |
| Non-adjacent | > 40 | |
4. Package Outline (Dimensions and Structure)
Module Dimensions: Standard ABS box or metal module, approximately 100 * 80 * 10 mm (typical thickness 10 mm, some ABS box models may have a height up to 18 mm, refer to specific model specifications).
Fiber Configuration:
Connector Type:
Polarization Notes:
5. Applications
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