10G Tunable DWDM SFP+ 80km C-Band Transceiver: DWDM-10G-SFP-80-TUN
10G Tunable DWDM SFP+ 80km Transceiver Overview
The DWDM-10G-SFP-80-TUN is a tunable 10G DWDM SFP+ covering 89 ITU C-Band channels (17 to 61, 50GHz grid) over 80 km single-mode fiber. Software-configurable wavelength selection replaces 89 fixed-wavelength SKUs with one module, cutting spare inventory costs. 23 dB link budget, multi-rate 1.25 to 11.32 Gbps, EEPROM-coded for multi-vendor compatibility. Made to order, 2-week lead time, lifetime warranty.
- Media Type: Single-Mode Fiber (SMF)
- Fiber Count: Duplex
- Connector: Double LC/UPC
- Maximum Distance: 80 km
- Average Link Budget: 23 dB
- Tx Wavelength: DWDM 89 Ch (C-band 50Ghz)
- Supported Data Rate: 1.25 Gbps - 11.32 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
10G Tunable DWDM SFP+ Transceiver Pricing
SKU:DWDM-10G-SFP-80-TUN
Made to Order - 2 Weeks10G Tunable DWDM SFP+ 80km C-Band Transceiver Specification
Form Factor | SFP+ |
Media Type | Single-Mode Fiber (SMF) |
Fiber Count | Duplex |
Connector | Double LC/UPC |
Maximum Distance | 80 km |
Average Link Budget | 23 dB |
TX Wavelength | Channel 17-61 (DWDM C-Band 50 GHz, 89 channels) |
RX Wavelength | Channel 17-61 (DWDM, C-Band 50 GHz) |
Supported Data Rate | 1.25 Gbps - 11.32 Gbps |
Supported Ethernet Applications | 10G Ethernet (10.31Gbps) |
Supported Fiber Channel Applications | 10G Fiber Channel (10.52 Gbps), 8G Fiber Channel (8.5 Gbps) |
Optical Transport Network (OTN) Applications | ODU2 (10.037Gbps), ODU2e (10.399Gbps), OTU1e (11.049Gbps), OTU1f (11.27Gbps), OTU2 (10.70Gbps), OTU2e (11.095Gbps), OTU2f (11.32Gbps) |
SDH/SONET Standards | STM-64 (9.95Gbps) |
DDM/DOM | Supported |
Tx Wavelength Bandwidth | ITU 50Ghz Grid: C-Band (Ch17-61) |
Rx Wavelength Bandwidth | 1260 - 1620 nm |
Minimum Transmitting Power | -1 dBm |
Maximum Transmitting Power | 4 dBm |
Receiver Sensitivity | -23 dBm |
Receiver Overload | -6 dBm |
Dispersion | 1600 ps/nm |
Transmitter Type | Monolithic MZM Tunable TOSA |
Receiver Type | APD Photodiode |
Temperature Range | Standard 0°-70°C |
Power | +3.3V single power supply |
Compliance | CE,Class 1 FDA and IEC60825-1 Laser Safety Compliant,RoHS,SFF-8431,SFP MSA |
10G Tunable DWDM SFP+ 80km C-Band Transceiver Datasheet
v4Complete technical specifications and product details
10G Tunable DWDM SFP+ 80km C-Band Transceiver Description
The EDGEOPTIC DWDM-10G-SFP-80-TUN is a multi-vendor compatible tunable 10G DWDM SFP+ dual-fiber optical module for long-haul dense wavelength division multiplexing applications with software-configurable wavelength selection over single-mode fiber. The module operates across ITU-T C-Band channels 17 through 61 on the 50 GHz DWDM grid, covering 89 channels with data rates from 1.25 to 11.32 Gbps across multiple protocol standards. This tunable DWDM SFP+ transceiver uses Monolithic MZM (Mach-Zehnder Modulator) Tunable TOSA technology for transmission and an APD (Avalanche Photodiode) receiver. The 23 dB optical link budget supports transmission distances up to 80 km over standard single-mode fiber. Actual achievable reach depends on fiber attenuation, connector and splice loss, and system margin reserved for aging; engineers should calculate against the link budget for each deployment.
The DWDM-10G-SFP-80-TUN is a hot-pluggable SFP+ transceiver with duplex LC/UPC connectors as the optical interface. The electrical interface conforms to SFF-8431 MSA (Multi-Source Agreement) specifications and is compatible with standard SFP+ host systems across multiple vendor platforms. EdgeOptic encodes the EEPROM with vendor-specific identifiers so the module is recognized as native by the target switching, routing, or DWDM platform during the inventory and link-up sequence. The module incorporates DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time monitoring of transmitted and received optical power levels, module temperature, bias current, and supply voltage via MSA-compatible EEPROM interface. The module operates within a 0 to 70 °C commercial temperature range.
The tunable wavelength capability of the DWDM-10G-SFP-80-TUN allows software-configurable channel selection across the full ITU-T C-Band DWDM grid. With 89 channels on the 50 GHz spacing, a single tunable SFP+ module can replace any of the 89 fixed-wavelength DWDM variants, simplifying spare inventory from dozens of SKUs to one. The configured wavelength is stored in non-volatile memory and persists through power cycles and reboots. Wavelength can be set via the host platform CLI on supported platforms or pre-programmed using an external wavelength tuning device before insertion. Refer to your vendor documentation for exact tuning CLI syntax.
Standards compliance includes IEEE 802.3ae for 10 Gigabit Ethernet and ITU-T G.694.1 for the DWDM wavelength grid, along with SDH/SONET, Fibre Channel, and OTN protocol support. The multi-rate capability accommodates legacy Gigabit Ethernet at 1.25 Gbps, 10G Fibre Channel at 10.52 Gbps, native 10 Gigabit Ethernet at 10.3125 Gbps, and OTN OTU2/OTU2e rates up to 11.32 Gbps. The transceiver is interoperable across vendors through MSA compliance, and equipment with vendor-specific module validation is supported through custom EEPROM programming. The DWDM-10G-SFP-80-TUN is CE/RoHS certified and compliant with Class 1 laser safety standards (IEC 60825-1).
Typical applications include metro and regional backbone links, inter-city data center interconnects, and service provider distribution networks over 80 km single-mode fiber. The 50 GHz channel spacing is backward-compatible with existing 100 GHz mux/demux equipment, as every 100 GHz channel center frequency is also present in the 50 GHz grid. The tunable optics approach reduces inventory costs for operators managing DWDM networks with many wavelengths, where a small number of tunable spares replaces a full set of fixed-wavelength modules.
The DWDM-10G-SFP-80-TUN is made to order with a 2-week lead time, backed by a lifetime warranty and 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. For volume pricing, custom EEPROM coding requests, or platform-specific compatibility verification, contact our sales team.
Frequently Asked Questions
How do I set the wavelength on a tunable DWDM SFP+?
There are two methods. On platforms with tunable optics support, use the host CLI to select the ITU channel number or wavelength. Refer to your vendor's documentation for exact command syntax, as it varies by platform and software version. If your switch or router does not expose wavelength tuning commands, the module can be pre-programmed using an external wavelength tuning device before insertion.
The configured wavelength is stored in non-volatile memory and persists through power cycles, reboots, and module removal. Once set, the DWDM-10G-SFP-80-TUN behaves identically to a fixed-wavelength DWDM module at that channel.
When should I use a tunable DWDM SFP+ instead of fixed-wavelength modules?
Tunable modules are most useful when you operate a DWDM network with many active wavelengths. Instead of stocking one spare for each of your 40 or more fixed-wavelength channels, a few tunable spares cover every channel. For a 40-channel network, a few tunable spares replace 40 fixed-wavelength SKUs. Tunable modules also simplify logistics for new deployments, since one SKU ships to any site regardless of which channel is needed.
For small, static deployments with only 2 to 4 DWDM channels that rarely change, fixed-wavelength modules remain cheaper per unit. The per-module cost of a tunable SFP+ is higher than a single fixed-wavelength variant, so the savings come from inventory consolidation at scale.
Can a 50GHz tunable DWDM SFP+ work with a 100GHz mux/demux?
Yes. The 50 GHz grid contains all of the same center frequencies as the 100 GHz grid, plus additional interleaved channels between each pair. The DWDM-10G-SFP-80-TUN is fully backward-compatible with 100 GHz mux/demux equipment. Tune the module to the channel frequency that matches your mux/demux port wavelength.
If you later upgrade to 50 GHz spacing to double your channel count, the same tunable modules support the denser grid without replacement. The module must always be tuned to the exact ITU channel that matches the mux/demux port it connects to.
Does a tunable DWDM laser drift over time and risk interfering with adjacent channels?
The DWDM-10G-SFP-80-TUN includes an internal wavelength locker that continuously monitors and adjusts the laser output to maintain frequency stability against the assigned ITU-T G.694.1 channel center across the full operating temperature range. Verify the locker accuracy specification against your ROADM or mux filter passband before deployment on narrow-filter systems. Adjacent 50 GHz channels are approximately 0.4 nm apart across the C-Band, providing separation between the locked output and adjacent channel center frequencies. The wavelength locker operates continuously, so the module maintains its channel assignment without operator intervention throughout its service life.
Can I use a tunable DWDM SFP+ on one end and a fixed-wavelength module on the other?
Yes. A tunable DWDM SFP+ interoperates with fixed-wavelength DWDM modules as long as both ends transmit and receive on the same ITU wavelength. Configure the tunable end to match the fixed module's channel number. The link operates identically to a fixed-to-fixed connection once the wavelength is set.
This is a common deployment pattern when replacing end-of-life fixed-wavelength modules one site at a time. You can migrate to tunable modules gradually without needing to swap both ends of a link simultaneously.