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10G DWDM SFP+ Optical Transceivers
High-Density Spectral Efficiency with 10G DWDM
Maximize your fiber capacity with our 10G DWDM (Dense Wavelength Division Multiplexing) SFP+ transceivers. Designed for high-performance metropolitan and long-haul networks, DWDM technology allows you to pack up to 80+ independent channels onto a single fiber pair. This makes it the premier choice for data centers and service providers needing to scale bandwidth without the prohibitive cost of laying new dark fiber.
Key Technical Features:
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Dense Channel Spacing: Support for 100GHz and 50GHz ITU grids, allowing for significantly higher channel counts than standard CWDM.
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Extreme Reach: Optimized for long-distance transmission, with standard modules supporting 40km (ER) and 80km (ZR), and the ability to reach hundreds of kilometers when used with EDFA amplifiers.
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Tunable Options: Our Tunable 10G DWDM SFP+ modules allow you to program the wavelength in the field, reducing the need to stock dozens of fixed-wavelength spares.
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Digital Optical Monitoring (DOM): Standard on all Compufox DWDM modules for real-time tracking of laser temperature, supply voltage, and optical power.
Certified Interoperability
At Compufox, reliability is our priority. Every DWDM module is coded and tested in-house to ensure 100% compatibility with major hardware vendors, including Cisco, Arista, and Juniper. All transceivers are MSA compliant and built to provide stable, low-latency performance in the most demanding network cores.
DWDM vs CWDM vs BiDi: 10G Fiber-Saving Technologies Compared
When fiber availability is limited or network capacity needs to scale, DWDM, CWDM, and BiDi technologies provide different ways to maximize fiber efficiency. Understanding their differences is key to selecting the correct 10G solution.
| Technology |
Fiber Usage |
Wavelength Method |
Typical Distance |
Best Use Case |
| BiDi |
Single fiber (simplex) |
Dual wavelengths (Tx/Rx) |
10–100 km |
Fiber-constrained links |
| CWDM |
Two fibers (duplex) |
20 nm spaced wavelengths |
10–80 km |
Campus & metro aggregation |
| DWDM |
Two fibers (duplex) |
ITU-grid dense wavelengths |
40–80 km+ |
Metro, DCI & carrier networks |
Key Differences Explained
BiDi (BiDirectional)
BiDi transceivers transmit and receive over a single strand of single-mode fiber using two different wavelengths. They must be deployed in matched wavelength pairs and are ideal when fiber availability is extremely limited.
CWDM (Coarse Wavelength Division Multiplexing)
CWDM allows multiple 10G channels to share the same fiber pair using widely spaced wavelengths (1270–1610 nm). It offers a cost-effective way to increase capacity without the complexity of DWDM.
DWDM (Dense Wavelength Division Multiplexing)
DWDM uses tightly spaced ITU-grid wavelengths to support high channel density and long distances. It is the preferred choice for carrier-grade, metro, and data center interconnect (DCI) networks.
How to Choose the Right Technology
- Choose BiDi if you need to save fiber and are deploying a small number of 10G links.
- Choose CWDM if you want to scale multiple 10G links over the same fiber at a lower cost.
- Choose DWDM if you need maximum capacity, long distance, and carrier-grade scalability.
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