Custom 25G CWDM / DWDM SFP28 MODULE, Tailored Optical Multiplexing
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Eliminate Fiber Trenching: The ultimate high-capacity solution for modern DCI and 5G networks, completely eliminating the need for expensive and disruptive new fiber trenching.
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Specific Wavelength Engineering: These 25Gbps WDM modules offer specific laser wavelengths perfectly tuned to your requested ITU-T grids for massive optical multiplexing.
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Tailored Power Engineering: Capable of being engineered for extreme customized distances, optimizing the laser output to compensate for your unique multiplexer insertion losses.
Product Overview
When modern 5G backbones and DCI networks experience exponential traffic growth, scaling physically is rarely financially viable. The Wolon Custom 25G CWDM and DWDM SFP28 MODULE series is the strategic solution for bespoke optical multiplexing. We assign the highly precise, specific "color" (wavelength) you request to each 25G SFP28 module, allowing your engineers to combine dozens of independent high-speed streams into one single fiber trunk. Whether your network requires a specific CWDM channel or an ultra-precise DWDM grid frequency, we engineer these transceivers to ensure your networks scale seamlessly and affordably.
Key Features
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Exceptional Wavelength Stability: Utilizes premium custom-tuned lasers to prevent thermal channel drift, ensuring zero crosstalk between tightly packed 25G frequencies.
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Custom Color-Coded Bails: We provide industry-standard or custom-assigned color latch mechanisms so field technicians can instantly identify the specific wavelength being deployed.
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Extended Reach Compensation: We calibrate the transmit power to overcome the specific insertion loss introduced by your passive MUX/DEMUX equipment.
Technical Specifications
| Specification | Details |
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| Data Rate | 25.78 Gbps |
| Form Factor | SFP28 |
| CWDM/DWDM Channels | Custom aligned to specific ITU-T grids per client request |
| Optical Budget | Tailored power outputs to overcome specific mux/demux loss |
| Compatibility | Full custom OEM programming and labeling available |
Application Scenarios
Metro WDM Systems: Multiplying bandwidth capacity for 5G metropolitan rings without trenching new fiber.
Cloud DCI: Consolidating massive 25G parallel data traffic between data center sites over leased dark fiber.
Frequently Asked Questions
Q1: What standard channel spacing do your 25G DWDM modules support?
A: We provide ultra-high-precision 25G DWDM solutions that perfectly support standard C-Band 100GHz spacing (approx. 0.8nm) as well as ultra-dense 50GHz spacing (approx. 0.4nm), strictly conforming to international ITU-T grid protocols.
Q2: Must we purchase your proprietary passive Mux/Demux chassis to use these modules?
A: Absolutely not. Our CWDM/DWDM modules are engineered with extremely tight wavelength tolerance. They are 100% MSA and ITU-T compliant, guaranteeing seamless optical interoperability with any third-party passive Multiplexer or Demultiplexer currently active in your network.
Q3: Which specific wavelengths are used for 25G CWDM multiplexing?
A: Due to the severe dispersion penalties at ultra-high 25G speeds, we highly recommend and manufacture CWDM modules utilizing the first 6 wavelengths of the O-Band (1271nm, 1291nm, 1311nm, 1331nm, 1351nm, and 1371nm) to ensure pristine signal quality.
Q4: Wavelengths can easily get mixed up in data centers. How do you prevent this?
A: We implement strict visual fail-safes on our production lines. Every specific wavelength module features an industry-standard color-coded pull tab. Furthermore, we laser-engrave the exact wavelength value directly onto the metal casing in large, highly visible text so your engineers can identify them instantly.
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